Browse Other R Word Lengths
12-Letter R Words by Ending Letter
All 1,569 12-Letter Words Starting With R
rabbinicallyIn a rabbinical way.rabbitfucker(slang, derogatory, offensive, vulgar) Term of abuse.raccoonberryAlternative form of raccoon-berry.raccoonproofResistant to raccoons.racecadotrilAn antidiarrheal drug that is a peripherally-acting enkephalinase inhibitor.racelessness(sociology, philosophy) The condition of having no perceived race.racemiferous(archaic, botany) Bearing racemes.racemisationAlternative spelling of racemization.racemization(organic chemistry, physical chemistry) The formation of a racemate from a pure enantiomer.racemoramide(chemistry) The racemic mixture of dextromoramide and levomoramide.racephedrine(pharmacology) Synthetic ephedrine, being a racemate of the R- and S- forms.racetracking(manufacturing) The situation where material is not correctly aligned with the edge of a mold, leaving an empty channel.rachiglossan(zoology, obsolete) Any member of the Rachiglossa, a former classification that included a number of carnivorous marine neogastropod families.rachischisis(medicine) A developmental birth defect in which the neural tube fails to close completely, leading to motor and sensory deficits, chronic infections, and disturbances in bladder function.rachitogenicCausing rickets.rachycentrid(zoology) Any fish in the family Rachycentridae.racializableCapable of being racialized.raciologicalRelating to raciology.racistically(nonstandard) racistlyracketbuster(chiefly US, informal) A person, especially a law enforcement officer, who breaks up criminal rackets.racketeeringThe criminal action of being involved in a racket; especially, directing it.raconteurialCharacteristic of a raconteurradiansphereA spherical region of radius λ/2π around a small dipole electromagnetic antenna. This is the distance at which the induction and radiation terms are equal in magnitude. Inside, the induction terms dominate. In radio antenna theory the radiansphere is a convenient definition for the boundary between near-field and far-field regions.radiationist(nonstandard, rare) One whose (medical or scientific) profession is to apply radiation or radioactive material (to someone or something).radiatorlessWithout a radiator.radicalisingpresent participle and gerund of radicaliseradicalisticOf, or pertaining to radicalismradicalizingpresent participle and gerund of radicalizeradicicolousThat lives in or on the roots of plantsradicivorous(zoology, rare) That feeds on plant roots.radiesthesiaThe supposed paranormal ability to detect a radiation-like aura within the human body.radiestheticRelating to radiesthesiaradioactivesplural of radioactiveradioaerosol(medicine) An aerosol containing a radioisotope (typically technetium-99m) and a chelating agentradioanalyse(transitive) To carry out a radioanalysisradioarsenicradioactive arsenic (especially when used as a tracer)radiobeaconsplural of radiobeaconradiobenzeneradioactive benzene (labelled with radioactive carbon)radiobindingThe binding of radioisotopes (to a substrate)radiobiology(biology) The study of the effects of ionizing radiation on living organismsradiobismuthAny radioactive isotope of bismuth, especially when used in metabolic studiesradiobromineradioactive bromineradiocadmiumradioactive cadmiumradiocaesiumradioactive caesiumradiocalciumradioactive calcium (especially when used as a tracer)radiocarbide(inorganic chemistry) Any radioactive carbide, but especially one used to prepare radioactive methane used as a tracerradiocarbonsplural of radiocarbonradiocauterycautery by means of radiofrequency radiationradiochemistA chemist who specializes in radiochemistryradiochromicThat changes colour on exposure to ionizing radiationradiocolloidAny colloid one or more of whose components is radioactiveradiocomplex(chemistry) A complex containing a radiotracerradiocurablecurable by means of radiotherapyradiodeltoid(anatomy) Relating to the radius and the deltoid muscleradiodensityThe relative transparency of a material to X-rays and other radiation.radioecologythe study of the fate and effects of radioactive materials in the environmentradioelement(physics) Any element whose currently known isotopes are all radioactive.radioembolicRelating to radioembolismradioemitterAny device that emits radio waves.radioethanolradioactive ethanol (labelled with radioactive carbon)radiogalliumradioactive gallium (especially when used as a tracer)radiogenesisThe production of nuclides by radioactive decay.radiogenomicRelating to radiogenomicsradiogeology(geology) The study of the distribution of radioactive elements in the Earth's crust.radiographedsimple past and past participle of radiographradiographerSomeone who works with radiography. This term seems to be more common in British English.radiographicOf or pertaining to radiography.radiohafniumradioactive hafniumradiohalogen(chemistry, physics) Any radioactive isotope of a halogenradiohumeral(anatomy) Of, pertaining to, or joining the radius and humerus.radioimagingThe acquisition of a brand image by a radio stationradioinduced(pathology) induced by radiationradioiridiumradioactive iridiumradioisotope(physics) A radioactive isotope of an element.radiokryptonradioactive kryptonradiolabeledsimple past and past participle of radiolabelradiolariansplural of radiolarianradiolariticOf or relating to radiolarite.radiolithiumradioactive lithiumradiolocatorAn instrument that carries out radiolocation.radiologicalOf or pertaining to radiation, radioactivity or nuclear weapons.radiologistsplural of radiologistradiolucenceradiolucencyradiolucencyThe quality or degree of being radiolucent.radiomercuryradioactive mercuryradiomimetic(biology) Having a biological effect similar to that of radiationradioniobiumradioactive niobiumradionuclearRelating to a radionuclideradionuclide(physics) a radioactive nuclideradioopacityAlternative form of radiopacity.radiopeptideA radiolabelled peptideradiophonics(UK, dated) radiophonic sounds and music, or the techniques used to produce themradiophysics(physics) The physics of ionizing radiation.radioprotect(transitive) To protect against the harmful effects of ionizing radiation.radiorelease(chemistry) The release of a radioactive substance during a chemical reaction.radiorheniumradioactive rheniumradiosiliconradioactive siliconradiostationAlternative form of radio station.radiosulphurAlternative form of radiosulfur.radiosurgery(surgery) The use of a directed beam of X-rays or other ionizing radiation to destroy diseased tissue.radiotaggingpresent participle and gerund of radiotagradioterbiumradioactive terbiumradiotherapySynonym of radiation therapy.radiothorium(physics) The radioactive isotope thorium-228radiothuliumradioactive thuliumradiotracersplural of radiotracerradiotracingThe use of a radiotracerradiotrackedtracked by means of a radiotrackerradiotrackerA device that tracks wild animals fitted with radiocollarsradiotrician(dated) A technician who builds or repairs radios.radiotrophic(of fungi, according to a proposed theory) Using melanin to convert gamma radiation into chemical energy for growthradiotropismMovement to or from ionizing radiationradiouraniumradioactive uranium.radioyttriumradioactive yttriumragamuffinlyLike or befitting a ragamuffin.railroadiana(US) Railwayana.railwaywoman(rail transport) A woman who works on a railway.raincoatless(rare) Without a raincoat.rainfallwiseWith respect to rainfall.rainforestedCovered in rainforest.rainlessnessThe state or condition of being rainless; lack of rain; droughtrajanigandha(India) The tuberose (Polianthes tuberosa (now Agave amica).ramblingnessThe quality of being rambling; tendency to ramble.rambunctious(chiefly US, informal) Boisterous, energetic, noisy, and difficult to control.ramentaceous(botany, archaic) Covered with ramenta.ramifenazoneA nonsteroidal anti-inflammatory drug.ramification(mathematics) An arrangement of branches.ramixotidine(pharmacology) A particular histamine 2 receptor antagonist.ramoconidiumAn intercalary or apical branch of a conidiophore that detaches and functions as a conidiumrampaciouslyIn a rampacious manner.rampageouslyIn a rampageous manner.ramsquaddledSynonym of drunk.ramuliferous(zoology) Bearing ramuli (small branches)ranaconitineA particular diterpene alkaloid isolated from plants of the genus Aconitum.rancourouslyObsolete form of rancorously.randistirionAlternative spelling of rantistirion.randomizableCapable of being randomized.rangeabilityA measure of the range of signal values over which a particular mechanical device is reliable.rangefindersplural of rangefinderrangefindingThe act of determining the distance to a target.rangekeeping(military, historical) The calculation of how to direct gunfire at a target, involving range, bearing, and other factors.ranidaphobiaThe fear of frogs, or both frogs and toads.ranklessnessAbsence of rank.rantankerous(US, dialect, dated) argumentative; quarrelsome; cantankerousrantistirion(Eastern Orthodoxy) A ritual sprinkler used in some Christian rites.ranunculusesplural of ranunculusrapacuronium(pharmacology) A nondepolarizing neuromuscular blocker formerly used in anesthesia.rapateaceous(botany, relational) Of or relating to the Rapateaceae.raphidophyte(biology) Any of a group of unicellular algae of the class RaphidophyceaeraphidovirusAny virus of the genus Raphidovirusrapscallionsplural of rapscallionrarefactionsplural of rarefactionrarificationAlternative form of rarefaction.raspberriade(rare) Archaic form of raspberryade.raspberryadeA sweetened raspberry drink.raspberryingThe act of gathering raspberries.raspberryishraspberrylike (especially in describing wine)rastrographyA stave created using rastra.ratelessnessThe condition of being ratelessrathskellersplural of rathskellerratificationThe act or process of ratifying, or the state of being ratified.ratihabition(obsolete, law) confirmation or approbation, as of an act or contractratiocinatesthird-person singular simple present indicative of ratiocinateratiocinatio(rhetoric) Reasoning (typically with oneself) by asking questions.ratiocinatorOne who ratiocinates; a reasoner.ratiometricsratiometric measurementratiomorphic(psychology) Relating to unconscious processing of sensory datarationalisedsimple past and past participle of rationaliserationaliserAlternative form of rationalizer.rationalisesthird-person singular simple present indicative of rationaliserationalistsplural of rationalistrationalizedsimple past and past participle of rationalizerationalizerOne who rationalizes.rationalizesthird-person singular simple present indicative of rationalizerationalness(archaic) The quality or state of being rational.rattleheadedgiddy; unsteadyrattlesnakesplural of rattlesnakerattlingnessThe quality of something that rattles.rauenthalite(mineralogy) A triclinic-pinacoidal mineral containing arsenic, calcium, hydrogen, and oxygen.rauschpfeifeA windcapped conical reed instrument of the woodwind family, used in Europe in the 16th and 17th centuries.ravennagrassAlternative form of Ravenna grass.ravenousnessQuality of being ravenous.ravuconazole(pharmacology) A particular triazole antifungal drug.reabsorbableAble to be reabsorbedreabsorbtiveMisspelling of reabsorptive.reabsorption(physics) The subsequent absorption of emitted radiation.reabsorptiveRelating to reabsorption.reabstractedsimple past and past participle of reabstractreaccelerate(transitive) To accelerate again or anew.reaccentuateTo accentuate again; to place renewed emphasis onreacceptanceAcceptance again of something previously rejected.reaccomplishTo accomplish again.reaccumulateTo accumulate againreaccusationA second or subsequent accusation.reachability(uncountable) The condition of being reachablereacidifyingpresent participle and gerund of reacidifyreacquaintedsimple past and past participle of reacquaintreactabilityThe property of being reactable.reactionistsplural of reactionistreactionlessDevoid of reactions; not reacting.reactionware(chemistry) labware in which reactions are carried outreactionwiseIn terms of reactions (responses to stimuli).reactivatingpresent participle and gerund of reactivatereactivationThe activation of something previously inactive or inactivated.reactivenessThe quality or state of being reactive.reactologistOne who studies reactology.readablenessThe property of being capable of being read, legibility.readaptationA second or subsequent adaptation.readdressingpresent participle and gerund of readdressreadjudicateTo adjudicate again.readjustableCapable of being readjusted.readjustmentA second or subsequent adjustment.readminister(transitive) to administer againreadmissionsplural of readmissionreadmittanceThe act of readmitting.readsorptionThe adsorption of a material that was previously removed from a surfacereaerosoliseTo aerosolise againreaffirmance(chiefly law) A second or subsequent affirmance; a reaffirmation.reafforestedsimple past and past participle of reafforestrealienationThe process of realienating.realisationsplural of realisationrealisticityThe quality of being realistic.realizationsplural of realizationreallegationA second or subsequent allegation.reallegoriseAlternative spelling of reallegorize.reallegorizeTo allegorize again.reallocatingpresent participle and gerund of reallocatereallocationThe act of reallocating; a second or subsequent allocation.realterationalteration againreamalgamateTo amalgamate again.reambulationA period of walking after a period of restreamputation(surgery) A second amputation performed upon the same body part.reanalysableAlternative form of reanalyzable.reanalyzable(rare) Able to be reanalyzed.reanimationsplural of reanimationreannexationThe act of reannexing; a subsequent annexation.reannotationA second or subsequent annotation.reanointmentThe act of anointing again.reapparitionSynonym of reappearance.reappearanceThe act of appearing again following absence.reappointingpresent participle and gerund of reappointreappositionA second or subsequent appositionreappraisingpresent participle and gerund of reappraisereappreciate(transitive) To appreciate again or anew.rearticulateTo articulate againrearwardmostsuperlative form of rearward: most rearwardrearwardnessQuality of being rearward.reascendanceA second or subsequent ascendance.reascendancyAlternative form of reascendance.reasonlesslyIn a reasonless way; without reason.reaspirationA second or subsequent aspirationreassemblageA second or subsequent assemblage.reassemblingpresent participle and gerund of reassemblereassessmentThe act of reassessing; a second or subsequent assessment.reasseverateTo asseverate again.reassignableCapable of being reassigned.reassignmentThe act of reassigning; a second or subsequent assignment.reassimilate(transitive) To assimilate again.reassortmentThe act or result of arranging in a new order or layout.reassumptionAssumption again or anew.reassurancesplural of reassurancereassuringlyIn a reassuring manner.reattachableThat may be reattachedreattachmentThe act of reattaching; a second or subsequent attachment.reattainmentsubsequent attainment; attainment againreattendanceThe act of attending again.reattractionAttraction again or anew.reattunementThe process of reattuning.reawakenmentA reawakening.rebaccamycinMisspelling of rebeccamycin.reballasting(rail transport) The process of renewing the ballast under railway track.rebanishmentThe act of banishing again.rebaudioside(organic chemistry) A compound found in stevia leaves.rebeccamycinA particular antitumor drug.rebelliouslyIn a rebellious manner.reboundinglyIn a way that rebounds.rebracketing(linguistics) The process by which a word originally derived from one source is broken down or bracketed into a different set of factors.rebroadcaststhird-person singular simple present indicative of rebroadcastreburnishingpresent participle and gerund of reburnishrecaffeinate(transitive) To supply with more caffeine.recalcitrantMarked by a stubborn unwillingness to obey authority.recalcitrate(intransitive) To kick back; to kick against anything.recalculableAble to be recalculated.recalculatedsimple past and past participle of recalculaterecalculatesthird-person singular simple present indicative of recalculaterecalescenceAn increase in temperature that occurs while cooling metal through a range of temperatures in which change in structure occurs.recalibratorOne who or that which recalibrates.recapacitate(transitive) To qualify again; to confer capacity on again.recapitaliseNon-Oxford British English standard spelling of recapitalize.recapitalizeTo change how a corporation is structured.recapitulantrecapitulatingrecapitulate(ambitransitive) To summarize or repeat in concise form.recapturableThat can be recaptured.recarbonizerA recarbonizing agent.recarburizerA substance containing carbon, used in recarburizing.recategoriseNon-Oxford British English standard spelling of recategorize.recategorizeTo categorize again, to put in a new or different category.recausticiseAlternative spelling of recausticize.recausticize(transitive) To causticize again.receivednessThe state or quality of being received, accepted, or current.receiverlessWithout a receiver.receivership(law) The office and duties of a receiver.recensionistSomeone who makes recensions, i.e. a critical editor.recensorshipcensorship again or anewrecentralize(transitive) To centralize again or anew.recentrifugeTo centrifuge again.receptacular(botany) Pertaining to, or growing in, the receptacle.receptaculum(anatomy) A receptacle.receptionism(theology) The Anglican doctrine that, during the Eucharist, the bread and wine remain unchanged after consecration, but that communicants receive the body and blood of Christ by faith when they consume the bread and wine.receptionistAn employee (such as a secretary) who works in reception (receiving visitors and/or calls) for a person or business, especially an office.receptorlessLacking receptorsrecertifyingpresent participle and gerund of recertifyrecessionalsplural of recessionalrecessionaryOf or relating to a recession.recessionistCausing or relating to an economic recession.rechannelingpresent participle and gerund of rechannelrechannelize(transitive) To channelize again or differently.rechargeableAble to be recharged, especially of a battery that can be recharged from mains electricity via a charger.rechlessnessObsolete spelling of recklessness.recidivationRelapse of a disease or a symptom.recidivisticBeing a recidivist; inclined to revert to previous behaviours.reciprocablecapable of reciprocationreciprocallyIn a reciprocal manner; by way of returning (e.g. a favour, insult, etc).reciprocatedsimple past and past participle of reciprocatereciprocatorSomething, especially part of a mechanism, that reciprocates.recipromaticHaving an automatic adjustment of the position.recirculatedsimple past and past participle of recirculaterecirculatorA device that recirculates; that which causes recirculation to occur.recircumcise(transitive) To circumcise again.recitationalRelating to recitation.recitativelyIn the style of, or in a way that relates to, recitation.recklessnessThe state or quality of being reckless or heedless, of taking unnecessary risks.reckonmaster(rare, now historical) A mathematician or arithmetician.reclassifiedsimple past and past participle of reclassifyreclassifierOne who or that which reclassifies.recognisable(British spelling) Able to be recognised.recognisablyIn a way or manner that is recognisable.recognisanceAlternative spelling of recognizance.recognitionsplural of recognitionrecognizableAble to be recognized.recognizablyin a recognizable mannerrecognizanceA token; a symbol; a pledge.recognizedlyIn a manner that is recognized, of which people are aware.recollectingpresent participle and gerund of recollectrecollectionThe act of recollecting, or recalling to the memory; the act of recalling to memory.recollectiveOf or pertaining to recollection.recollimatedsimple past and past participle of recollimaterecolonizingpresent participle and gerund of recolonizerecolorationAct of recoloring.recombinantsplural of recombinantrecombinatorAnything that serves to recombine a set of elements.recombogenicMisspelling of recombinogenic.recombustioncombustion againrecomforture(obsolete) The act of recomforting; restoration of comfort.recommencingpresent participle and gerund of recommencerecommendaryServing to recommend.recommendersplural of recommenderrecommission(transitive) To give a new commission or to validate an existing commission.recommitmentA renewal of a commitment, or an act of recommittingrecommittalsplural of recommittalrecompactionThe process of compacting something again.recomparisonThe act of comparing again.recompencingpresent participle and gerund of recompencerecompensateTo recompense.recompensingThat provides recompense; rewarding, compensatory.recompensiveServing to recompense or rewardrecompilable(computing) Capable of being recompiled.recompletion(uncountable) The act of completing again.recomplianceThe act of complying again.recomplicate(transitive) To complicate again or anew.recomputableCapable of being recomputed.reconceptionA new conception or way of conceiving somethingreconcilableCapable of being reconciled.reconcilablyIn a reconcilable manner.reconciliateAlternative form of reconcile.reconcoctionThe act of concocting again.recondensingpresent participle and gerund of recondensereconductionRepeat undertaking or restoration.reconfiguredsimple past and past participle of reconfigurereconfigurerOne who reconfigures.reconfirmingpresent participle and gerund of reconfirmreconfiscateTo confiscate again.reconflationThe act of reconflating.recongregate(intransitive) To congregate again.reconjugatedsimple past and past participle of reconjugatereconnectingpresent participle and gerund of reconnectreconnectionA connection of things that have been previously severed.reconnectiveRelating to reconnection.reconnoitersplural of reconnoiterreconnoitrerOne who reconnoitres.reconnoitresthird-person singular simple present indicative of reconnoitrereconqueringpresent participle and gerund of reconquerreconsecrate(transitive) To consecrate again.reconsentingpresent participle and gerund of reconsentreconsideredsimple past and past participle of reconsiderreconsiderer(rare) One who reconsiders.reconstitute(transitive) to construct something anew, or in a different mannerreconstructsthird-person singular simple present indicative of reconstructrecontouringpresent participle and gerund of recontourrecontribute(ambitransitive) To contribute again.reconvalesce(intransitive) To convalesce; to recover health and strength.reconvention(law, civil law) An action brought by the defendant against the plaintiff before the same judgereconversionThe action of converting something again.reconvertingpresent participle and gerund of reconvertreconveyanceThe conveyance of a property back to a former ownerreconviction(law) Conviction again or anew.recordednessQuality of being recorded.recordershipThe role, duties, or office of a recorder.recordholderOne who keeps records or documents.recordkeeperAlternative form of record keeper (“keeper of records”).recoronationThe act of recoronating.recorrectionA second or subsequent correction.recorruptionCorruption again.recounteractTo counteract again.recourselessWithout recourse; having no help or assistance available.recoveringlyWhile recovering; during recovery.recraniotomy(surgery) A second or subsequent craniotomyrecreationalFor, or relating to, recreation.recreativelyIn a recreative manner; so as to amuse or divert.recredential(transitive) To credential again or anew.recriminatorSomeone who recriminates.recrudescentBreaking out again or reemerging after temporary abatement or suppression.recruitmentsplural of recruitmentrectanguloid(geometry) A rectangular object; A three-dimensional form related to the rectanglerectificatorSomeone or something that rectifies or refinesrectilineousObsolete form of rectilinear.rectiradiate(malacology, of the ribs of a cephalopod shell) Straight (not inclined forward or backward).rectocoliticRelating to rectocolitis.rectocolitisinflammation of the rectum and colonrectocolonicRelating to the rectum and colonrectogenital(anatomy) Of or pertaining to the rectum and the genitals.rectorrhagia(medicine) rectal bleeding.rectosigmoid(anatomy) Of the rectum and the sigmoid colon; especially, of the junction between them.rectosygmoidMisspelling of rectosigmoid.rectouterine(anatomy) Located between the rectum and uterus.rectovaginalOf or pertaining to the rectum and the vagina, as (usually, more specifically) a fistula between the two.rectovesical(biology, medicine) Synonym of vesicorectal.recuperatingpresent participle and gerund of recuperaterecuperationGradual restoration to health.recuperativeIn the way of recuperation.recuperatoryOf or relating to recuperation; tending to recovery.redcanyonite(mineralogy) A monoclinic yellow mineral containing nitrogen, hydrogen, oxygen, sulphur, uranium, and manganese.redeconvolve(rare) To deconvolve again or back.redecoratingpresent participle and gerund of redecorateredecorationThe act of redecoratingrededicatingpresent participle and gerund of rededicaterededicationA new dedication.redeemershipThe role or status of a redeemer, specifically (Christianity) Christ the Redeemer.redefinitionThe act or event of redefining.redelegationAct of redelegating.redelessnessThe quality of being redeless.redeliberate(transitive) To deliberate again; to reconsider.redemandableAble to be redemanded.redemolitionDemolition again.redemptionalRelating to redemption.redemptionerSomeone who redeems oneself, such as from debt or servitude.redemptivelyIn a redemptive manner.redenominate(transitive) To denominate again or anew.redeployableAble to be redeployedredeploymentThe act of redeploying.redepositingpresent participle and gerund of redepositredeposition(geology) The deposition of material originally deposited elsewhere and subsequently movedrederivationA second or subsequent derivationrederivatizeTo derivatize againredesignableCapable of being redesigned.redetachmentThe act or process of redetaching.redetectabledetectable again (following a time interval or other operation)redeterminedsimple past and past participle of redetermineredevelopersplural of redeveloperredevelopingpresent participle and gerund of redevelopredilatationA second, or subsequent dilatationredingtonite(mineralogy) A monoclinic mineral containing aluminum, chromium, hydrogen, iron, magnesium, nickel, oxygen, and sulfur.redintegrateTo renew, restore to wholeness.rediploidizeTo return to diploid formredirectableCapable of being redirected.rediscipline(transitive) To discipline again.rediscoveredsimple past and past participle of rediscoverrediscovererOne who discovers something again.rediscretizeTo discretize againredispersionA second or subsequent dispersion; the act of redispersingredissectionA second or subsequent dissectionredissociateTo dissociate againredissolubleAble to be redissolved.redistribute(transitive) To distribute again.redistrictedsimple past and past participle of redistrictredoublementA redoubling or reduplication.redoxidative(chemistry) Relating to, or produced by a redox reactionreducetarianA person who for ethical reasons attempts to reduce the amount of meat in their diet.reducibilityThe property of being reducible.reductionismAn approach to studying complex systems or ideas by reducing them to a set of simpler components.reductionistOf, or relating to reductionism.redundanciesplural of redundancyredundantant(humorous, rare) redundantredundundant(humorous, nonstandard) Redundant.reduplicatedsimple past and past participle of reduplicatereduplicatesthird-person singular simple present indicative of reduplicatereduplicatorOne who or that which reduplicates.reeferphobiaA fear of cannabis or the individuals who consume it.reeferphobicRelating to reeferphobes or to reeferphobia.reembodiment(uncountable) The process of reembodying.reembroideryThe act or process of reembroidering.reemergencesplural of reemergencereemphasizedsimple past and past participle of reemphasizereemphasizesthird-person singular simple present indicative of reemphasizereemployment(uncountable) The condition of being reemployedreenactmentsplural of reenactmentreencountersplural of reencounterreencryptionA second or subsequent encryptionreengagementA renewed or repeated engagement.reenlistment(uncountable) The condition of being reenlistedreenrollmentThe act or the process of reenrolling; a second or subsequent enrollmentreepitheliseAlternative form of reepithelize.reepithelizeTo regrow epithelial tissue (especially as part of wound healing)reescalationAlternative spelling of re-escalation.reestimationAlternative form of re-estimation (“estimation again; another estimation”).reevaluatingpresent participle and gerund of reevaluatereevaluationA second or subsequent evaluation or ratingreexaminableCapable of being reexamined or reconsidered.reexcavationA repeated excavationreexcitationA second or subsequent excitationreexhibitionThe act of exhibiting something again.reexhumationA second or subsequent exhumation.reexperienceA renewed or repeated experience.reexpressionSubsequent or repeated expression.reextractionA second or subsequent extractionrefacilitate(transitive) To facilitate again.refactorable(programming) That can be refactored; that is suited to refactoring.refashioningpresent participle and gerund of refashionrefederalize(transitive) To reinstate the federal government of.refederationThe process of refederating.referencableAlternative spelling of referenceable.referentlessWithout a referent.referologist(medicine, derogatory, slang) A medical doctor who preferentially refers patients to specialists and other medical practitionersrefiltrationA second or subsequent filtration.refinabilityThe condition of being refinablerefixationalRelating to refixationreflationary(economics) Of or pertaining to reflation.reflectancesplural of reflectancereflectarrayA reflective array antenna.reflectinglyWith mental reflection; thoughtfully.reflectionalRelating to reflection.reflectivelyIn a reflective manner; meditatively.reflectivismAny of various theoretical approaches that oppose rational-choice accounts of social phenomena and, perhaps, positivism more generally.reflectivistOne who adheres to reflectivism.reflectivity(physics) The property or quality of being reflective.reflectogramThe set of data captured in an application of reflectography.reflectoporn(slang) Exhibitionism of a sexual nature in which a person takes a photograph of a reflective object, such as a kettle or cutlery, so that their naked image appears in the reflection, and posts the pictures on the Internet, for example when listing the object for sale.reflectoriseNon-Oxford British standard spelling of reflectorize.reflectorize(transitive, originally US) To make (a traffic sign) reflective.reflexivizer(grammar) That which makes something reflexive.reflexogenicThat induces a reflex.reflexographAn apparatus used to record one's reflexes graphically.reflexologicAlternative form of reflexological.refloatationAlternative spelling of reflotation.reflorescent(rare) That flowers again.refluxogenicThat causes gastric refluxreforestmentSynonym of reforestation.reforfeitureThe act of forfeiting something again.reformationsplural of reformationreformattingpresent participle and gerund of reformatreformulatedsimple past and past participle of reformulatereformulatesthird-person singular simple present indicative of reformulatereformulatorOne who reformulates something.refoundationThe process of founding something anew.refractilityThe quality of being refractile.refractionalRelating to refraction.refractivelyIn a refractive mannerrefractivityThe quality or degree of being refractive.refractoriesplural of refractoryrefractorilyIn a refractory manner.refractorityThe condition of being refractoryrefresheningpresent participle and gerund of refreshenrefreshfully(obsolete) In a refreshful manner.refreshinglyIn a refreshing manner.refreshmentsplural of refreshmentrefridgerateMisspelling of refrigerate.refrigerableSuitable for being refrigerated.refrigerantsplural of refrigerantrefrigeratedsimple past and past participle of refrigeraterefrigeratesthird-person singular simple present indicative of refrigeraterefrigeratorA household or commercial appliance used for keeping food fresh by refrigeration (short form fridge).refringencesplural of refringencerefumigationA second or subsequent fumigation.refurbishingpresent participle and gerund of refurbishrefurnishingpresent participle and gerund of refurnishrefutabilityThe ability to be refuted; disprovability.refutationalRelated to, or characteristic of refutationrefutativelyIn a refutative manner.regardlesslyIn a regardless manner.regeneralizeTo generalize againregeneratelyIn a regenerate manner.regeneratingpresent participle and gerund of regenerateregenerationRebuilding or restructuring; large scale repair or renewal; revitalisation.regenerativeThat serves to regenerate.regeneratorsplural of regeneratorregeneratoryHaving power to renew; regenerative.regeneratrixA female regenerator.regenotyping(genetics) A second or subsequent genotyping.reggaetonero(rare) A reggaeton musician or singer.reggeization(physics) A form of nonrelativistic scatteringregimentableAble to be ordered or systematized.regimentaledDressed in regimentals.regimentallyIn a regimental manner; strictlyregiocontrol(chemistry) control of the regiochemistry of a reactionregiodefined(chemistry) Having a defined regiochemical structureregiodiverseSynonym of regiodivergent.regionalismsplural of regionalismregionalizedsimple past and past participle of regionalizeregionalizesthird-person singular simple present indicative of regionalizeregioregular(organic chemistry) Describing a polymer in which each repeat unit is derived from the same isomer of the monomerregisterable(law) That can be registered (as of a trademark).registershipThe office or position of a register.registration(countable, uncountable) The act of signing up or registering for something.registrativeRelating to registration, registering or record-keeping.reglaciationThe process of reglaciating.regmaglyptedHaving a surface marked by regmaglypts.regmaglypticOf or relating to regmaglypts.regressional(statistics) Of or pertaining to regression.regressivelyin a regressive mannerregressivismRegressive attitudes or policies.regressivityThe condition of being regressive.regrettinglyWith regret; ruefully.regulabilityCapability of being regulated.regularisingpresent participle and gerund of regulariseregularitiesplural of regularityregularizingpresent participle and gerund of regularizeregularosideA particular steroid glycoside.regulationalThat regulatesregulativelyIn a regulative manner; in terms of regulation.regulatorilyIn a regulatory way.regurgitatedsimple past and past participle of regurgitateregurgitatesthird-person singular simple present indicative of regurgitateregurgitatorA person or thing that regurgitatesrehabilitantOne who is being or has been rehabilitated.rehabilitate(transitive) To restore (someone) to their former state, reputation, possessions, status etc.rehemorrhageA repeat hemorrhagereherniationSecond or renewed herniation.rehomogeniseAlternative form of rehomogenize.rehomogenize(transitive) To homogenize again.rehydratableCapable of being rehydrated.reificationsplural of reificationreilluminateTo illuminate again; to relight.reillustrate(transitive) To illustrate again.reimbursableEligible for repayment, particularly for money spent or expenses incurred; qualifying for reimbursement.reimmobilize(transitive) To immobilize again.reimplantingpresent participle and gerund of reimplantreimpositionThe act of reimposing; the act of imposing something again.reimpregnate(transitive) To impregnate again.reimpressionA second or repeated impressionreimputationA second or subsequent imputationreinaugurate(transitive) To inaugurate again or anew.reincarnatedsimple past and past participle of reincarnatereincarnatorOne who reincarnates.reincubationincubation againreindictmentindictment againreinervationMisspelling of reinnervation.reinfarctionA second or subsequent infarctionreinfectionsplural of reinfectionreinfectiousCapable of reinfecting.reinfibulate(surgery) To carry out a reinfibulationreinfiltrate(transitive) To infiltrate again.reinflictionThe act of inflicting again.reinforcibleAble to be reinforced.reingratiate(transitive) To ingratiate again.reinitialiseAlternative spelling of reinitialize.reinitializeTo initialize again.reinitiationA second or subsequent initiationreinseminateTo inseminate againreinspectionA repeat inspection, especially one carried out after a previous inspection discovered problemsreinspectiveRalating to reinspectionreinstallingpresent participle and gerund of reinstallreinstalmentAn additional or changed instalment.reinstrument(transitive) To instrument again or anew.reinsurancesplural of reinsurancereintegratedsimple past and past participle of reintegratereinternmentThe act of interning again.reintroduced(botany, zoology) Of a plant or animal, introduced again.reintroducerOne who reintroduces something.reintroducesthird-person singular simple present indicative of reintroducereintubationintubation again; reinsertion of a tube into an anatomical organreinventableCapable of being reinvented.reinventionsplural of reinventionreinvestment(uncountable) The condition of being reinvestedreinvigorate(transitive) To give new life, energy or strength to someone or something; to revitalize.reinvitationThe act of giving an invitation again.reinvocationinvocation againreionisationAlternative spelling of reionization.reionizationThe act or process of reionizing.reirrigationThe process of reirrigating.reiterationsplural of reiterationrejectamentaThings that are thrown away or rejected; items with little or no value waste, rubbish, garbage, refuse, ejectarejectaneous(obsolete) rejectable or rejected.rejectednessThe condition of being rejected.rejectionismThe political position of reflexively rejecting a policy or proposal.rejectionistHaving a tendency to reject the plans or proposals of others.rejectitious(obsolete) Implying or requiring rejection; rejectable.rejoicefullyIn a rejoiceful manner.rejuvenatingpresent participle and gerund of rejuvenaterejuvenationThe process of rendering young again.rejuvenativeWhich rejuvenatesrekindlementThe process of rekindling.relaminarize(physics, of a flow) To become laminar againrelaparotomyA second laparatomy.relatabilityThe quality of being relatable.relationallyIn a relational way.relationlessWithout relations.relationlikeResembling or characteristic of a relation.relationshipConnection or association; the condition of being related.relationshit(neologism, vulgar) A failed or failing relationship.relativenessThe state or condition of being relative; relativity.relativistic(physics) Of or relating to relativity.relativitistA proponent of the theory of relativity.relaunchableAble to be launched again.relaxabilityThe quality of being relaxable.relaxational(physics) Of, relating to, or caused by relaxation.relaxographyA graphical representation of relaxivityrelaxometricRelating to relaxometryrelegitimateTo make legitimate again.relegitimizeTo make legitimate again.relentlesslyIn a relentless manner.relexicalize(transitive, linguistics) To change the lexicon of; to use different words for.reliablenessThe property of being reliable, reliability.relictualismThe fact of being a relict in the biological sensereligiomaniaExcessive interest in religion.religionistsplural of religionistreligionlessLacking religion.religionlikeResembling or characteristic of a religion.religionwiseWith respect to, or concerning religionreligiophobeA religiophobic person.relinearizedsimple past and past participle of relinearizerelinquishedsimple past and past participle of relinquishrelinquisherOne who relinquishes.relinquishesthird-person singular simple present indicative of relinquishrelipidationA second or subsequent lipidationrelitigationThe act or process of relitigating.relocalisingpresent participle and gerund of relocaliserelocateableAlternative form of relocatable.relocationalRelating to relocation.remainderingpresent participle and gerund of remainderremainderman(law) A person entitled to receive a remainder interest in any property.remanipulate(transitive) To manipulate again.remarketableSuitable for being marketed again.rematchmakerOne who reunites a romantic couple.rematriationA return to a spiritual way of life with respect for Mother Earth.rematuration(biology) A second or subsequent maturationremediationsplural of remediationremedilesslyIn such a way as to be beyond all remedy.rememberableCapable or worthy of being remembered.rememberablySuch that it may be remembered; memorably.rememberanceMisspelling of remembrance, by analogy with its stem word “remember” and the fact that the final schwa in “remember” is often carried over to the pronunciation of its “-ance”-suffixed form.rememberingsplural of rememberingrememberment(rare) A reversal of dismemberment.remembersomeMarked by remembrance or remembering; easy to remember; unforgettableremembrancerA person who reminds someone.remembrancesplural of remembranceremembraunceObsolete form of remembrance.rememorationRecall by means of the memory; remembrance.rememorativeTending or serving to remind.remetabolize(biochemistry) To metabolize againremetalationThe act, or the result of rematalatingremethylatedmethylated again (following demethylation)remifentanil(pharmacology) A potent ultra short-acting synthetic opioid (trademark Ultiva) given to patients during surgery for pain relief and adjunctive to an anesthetic.remifentanylMisspelling of remifentanil.remilitariseAlternative form of remilitarize.remilitarize(transitive) To militarize (a demilitarized area) again.remineraliseAlternative spelling of remineralize.remineralize(transitive) To restore the mineral content (after demineralization).reminiscenceAn act of remembering long-past experiences, especially positive or pleasant ones, often fondly.reminiscencyObsolete form of reminiscence.remixabilityAbility to be remixed.remoderationThe act of remoderating; moderation again.remodularize(transitive) To modularize again or anew.remodulationA second modulationremoisturizeTo moisturize something that has been dried out.remonarchizeTo change the form of government back into a monarchy.remonetizingpresent participle and gerund of remonetizeremonstranceA remonstration; disapproval; a formal, usually written, objection or protest.remonstrantsplural of remonstrantremonstratedsimple past and past participle of remonstrateremonstratesthird-person singular simple present indicative of remonstrateremonstratorSomeone who remonstrates.remorsefullyWith remorse; in a remorseful manner.remortgagingpresent participle and gerund of remortgageremotenessesplural of remotenessremotivationA form of therapy attempting to re-establish an interest in the world in institutionalized patients.removabilityThe state of being removable.remuneratingpresent participle and gerund of remunerateremunerationSomething given in exchange for goods or services rendered.remunerativeOffering compensation, usually financial; rewarding; lucrative.remuneratoryremunerative; serving to remunerateremyelinatedmyelinated a second or subsequent timerenaissancesplural of renaissancerenaturaliseAlternative form of renaturalize.renaturalize(transitive) To naturalize again.renaturation(biochemistry) The reconstruction of the original form of a protein or nucleic acid following denaturationrenavigationNavigation again; the act of renavigating.rendezvousedsimple past and past participle of rendezvousrendezvousesthird-person singular simple present indicative of rendezvousrenditioningpresent participle and gerund of renditionrenegotiableAble to be renegotiated.renegotiatedsimple past and past participle of renegotiaterenegotiatorOne who renegotiates.reneutralizeTo return to neutralityrenewabilityThe property of being renewable.renieramycinAny of a group of isoquinoline antitumor alkaloids found in some marine spongesrenipuncture(surgery) puncture of the renal capsule of the kidneyrenodulationThe process of renodulating.renominatingpresent participle and gerund of renominaterenominationThe act of renominating, of nominating again.renormalizedsimple past and past participle of renormalizerenosterveldA South African ecoregion of Mediterranean forests, woodlands, and scrub.renotoxicity(medicine) Synonym of nephrotoxicity.renounceableCapable of being renounced.renouncementThe act of renouncing.renovascularOf or pertaining to the blood vessels of the kidneyrenovatinglySo as to renovate.renownednessThe quality of being renowned.renucleationThe insertion of a nucleus into a cell from which the original nucleus was removedrenumerationThe act or process of renumerating (counting or numbering again).renunciationThe act of rejecting or renouncing something as invalid.renunciativeTending to renounce.renunciatoryServing to renounce; rebellious, contrary.renversementA reversal or turning backwards; turnaround.reobtainableThat may be reobtained; obtainable again.reobtainmentThe process of reobtaining.reoccupation(uncountable) The condition of being reoccupiedreoccurrenceAn instance of something taking place again.reoppositionThe act of opposing again.reoptimisingpresent participle and gerund of reoptimisereordinationA second or subsequent ordination; an act of reordaining.reorganizingpresent participle and gerund of reorganizereorientableCapable of being reoriented.repackagableAble to be repackaged.repaginationThe act or process of repaginating.repairpersonSynonym of repairer, a person who repairs things.reparabilityAlternative form of repairability.reparationalRelating to, or serving as, reparation.reparativelyIn a reparative mannerrepartitionsplural of repartitionrepartneringpresent participle and gerund of repartnerrepasteurize(transitive) To pasteurize again.repatriatingpresent participle and gerund of repatriaterepatriationThe process of returning of a person to their country of origin or citizenship.repayabilityThe quality of being repayable.repeaterlessWithout a repeater.reperceptionThe act of perceiving againrepercussingpresent participle and gerund of repercussrepercussionA consequence or ensuing result of some action.repercussiveTending or able to repercuss; having the power of sending back; causing to reverberate.reperforator(telecommunications) A device for punching a duplicate perforated paper tape of incoming messages for later retransmission.reperpetrate(transitive) To perpetrate again.repersuasionThe process of persuading again.repertitious(rare, obsolete) Found by chance.repetitionalOf the nature of, or containing, repetition.repetitioner(archaic) One who repeats.repetitivelyIn a repetitive manner.rephotographto photograph againrephraseableAlternative form of rephrasable.replacementsplural of replacementreplantationReplanting (of plants, fields, or landscaping).replasteringpresent participle and gerund of replasterreplenishingpresent participle and gerund of replenishreplevisableAlternative form of repleviable.replicatableAble to be replicated; replicable.replicationsplural of replicationrepolarizingpresent participle and gerund of repolarizerepolishmentThe act of repolishing.repoliticiseNon-Oxford British English standard spelling of repoliticize.repoliticize(transitive) To politicize again.repolymeriseAlternative form of repolymerize.repolymerizeTo polymerize again, following previous depolymerizationrepopularise(British, transitive) To make popular again.repopularize(US, transitive) To make popular again.repopulationThe act of repopulating, especially with a species that might otherwise die out in an area.reportednessThe quality or state of being or having been reported (as opposed, for example, to being known directly).reportershipThe role or business of a reporter.repositionedsimple past and past participle of repositionrepositionerOne who, or that which, repositions.repositoriesplural of repositoryrepossessingpresent participle and gerund of repossessrepossession(uncountable) The condition of being repossessed.repossessorsplural of repossessorreprehensionthe act, or an expression, of criticism, censure or condemnation; reprimandreprehensiveContaining reprehension or reproof.reprehensoryContaining reproof; reprehensive.representantAppearing or acting for another; representing.representingpresent participle and gerund of representrepressionalRelating to, or associated with repressionrepressivelyIn a repressive manner.repressivismRepressive attitudes or policies.repressosome(biology) A nucleoprotein complex that represses gene transcriptionrepressuriseAlternative spelling of repressurize.repressurizeTo return to a pressurized state, especially after being depressurized.reprimandingpresent participle and gerund of reprimandreprioritiseAlternative spelling of reprioritize.reprioritize(transitive) To arrange things in a new order of importance; to prioritize again.repristinate(transitive) To restore something to an older or original state.reproachableDeserving reproach.reproachablyIn a reproachable manner.reproachlessWithout reproach.reproachmentAn upbraiding criticism or rebuke.reprocessingpresent participle and gerund of reprocessreproducableMisspelling of reproducible.reproducible(of a measurement, experiment etc) Capable of being reproduced at a different time or place and by different people.reproduciblyIn a reproducible manner; in a manner that can be copied.reproductionThe act of reproducing new individuals biologically.reproductiveOf or relating to reproduction.reproductoryRelating to reproduction.reprogramingpresent participle and gerund of reprogramreprogrammedsimple past and past participle of reprogramreprogrammerOne who, or that which, reprograms.reprographerOne who carries out reprography.reprographicOf, relating to, or produced by reprography.reprojectionProjection again or anew; the act of reprojecting.repromission(obsolete) A promise.repromulgate(transitive) To promulgate again.repropitiate(transitive) To propitiate again.reproportion(transitive) To modify to have different proportions.reprotectionThe act of protecting again.reptiliologyAlternative form of reptilology.republikkkanAlternative letter-case form of RepubliKKKan.republiqueta(politics, derogatory) A small and recently created republic, with a precarious organization and weak institutions.republishersplural of republisherrepublishingpresent participle and gerund of republishrepudiationsplural of repudiationrepuditationMisspelling of repudiation.repurchasingpresent participle and gerund of repurchaserepurposableAble to be repurposed; having alternative potential uses or functions beyond the original.reputabilityThe property of being reputable, a person's reputation.reputationalOf or pertaining to reputationreputatively(archaic) reputedly.requarantine(transitive) To quarantine again.requestingly(rare) In a requesting manner.requirementsplural of requirementrequisitionsplural of requisitionreradiationsplural of reradiationreradicalize(transitive) To radicalize again.rerecordableCapable of being rerecorded onto.rereferencedreferenced againreregulationThe act or process of regulating again, or reversing deregulationresalabilityThe extent to which something can easily be resold; salability with emphasis on future resale.resaturationsaturation againrescattering(physics) A second or subsequent scatteringreschedulingpresent participle and gerund of reschedulerescinnamineAn ACE inhibitor used as an antihypertensive drug.researchableThat can be researched.resectoscope(surgery) A hollow and flexible surgical instrument typically inserted through the urethra or vagina, used for performing a biopsy or resection at the level of the prostate, uterus, or urinary bladder.resecuritizeTo securitize again.resedimentedsimple past and past participle of resedimentreselectableAble to be reselected.resemblancesplural of resemblanceresemblaunceObsolete form of resemblance.resemblinglySo as to resemble; with resemblance or likeness.resensitizedsimple past and past participle of resensitizeresentencingpresent participle and gerund of resentencereseparationseparation againresequencingpresent participle and gerund of resequencereserpinisedTreated with reserpinereserpinizedAlternative spelling of reserpinised.reservationsplural of reservationreservednessThe characteristic of being reserved.reservoirfulEnough to fill a reservoir.reservosomalRelating to a reservosomeresettlementThe transportation of a group of people to a new settlement.resharpeningpresent participle and gerund of resharpenreshufflingsplural of reshufflingresidentiaryOf, pertaining to, or having residence, especially official residence.residentshipThe condition of being a resident.residualisedReduced to a residueresidualizedAlternative form of residualised.resignallingpresent participle and gerund of resignalresignationsplural of resignationresignednessThe state or condition of being resigned (passively accepting a situation).resilienciesplural of resiliencyresimulationA second or subsequent simulationresinicolous(biology) That inhabits the resin exuded by some treesresiniferousYielding resin.resinifiableAble to be resinified.resinizationThe process of resinizing.resinographyThe chemical and structural study of resins.resinousnessThe quality of being resinous.resipiscence(uncountable) Recognition of one or more past mistakes, especially with a desire to improve in the future; repentance; (countable) an instance of this.resistlessly(archaic, chiefly literary) In an unresisting manner; without objection or opposition.resistographA device that measures resistance to drillingresistometerA device that measures the resistance of an organism to destruction by heatresistomycinSynonym of heliomycin.resistorlessWithout resistors.resizabilityThe state or condition of being resizable.resocializerOne who resocializes.resolubilityQuality of being resoluble.resolubilizeTo solubilize again.resolutenessThe state or characteristic of being resolute; determination or resolution.resolutionalRelating to, or leading to, resolution.resolutionerOne who makes a resolution; one who joins with others in a declaration or resolution.resolutivityThe condition of being resolutiveresolvednessthe state of being resolved; determination; resolution.resonicationThe process, or the result of resonicatingresorbogenicThat causes resorption (of bone)resorcinolicRelating to resorcinol.resoundinglyWith a loud, resonant sound.resourcelessWithout resources.resourcement(Catholicism) A theological movement involving a return to the original sources of the Catholic church.respatialize(transitive) To spatialize again or differently.respecializeTo specialize again, in a different area.respectfullyIn a respectful manner.respectivelyIn a relative manner; often used when comparing array lists, where the term denotes that the items in the lists correspond to each other in the order they are given.respirationsplural of respirationrespiratoredEquipped with a respirator.respirometerA device used to measure the rate of respiration of living organisms, such as plants or fish.respirometryA form of calorimetry that is used to measure the metabolic rate.respirovirusAny virus, of the genus Respirovirus responsible for diseases of the respiratory tractresplendenceThe property of being, or that which causes something to be, resplendent.resplendencyresplendence, radiant beautyrespondencesplural of respondencerespondentia(law, commercial law) A loan upon goods laden on board a ship.responselessHaving or producing no response.responsiblesplural of responsibleresponsivelyIn a responsive manner.responsivityA measure of responsiveness.responsorialA book of liturgical responsesresponsoriesplural of responsoryressentimentObsolete form of resentment.restabilisedsimple past and past participle of restabiliserestabilizedsimple past and past participle of restabilizerestagnation(obsolete) stagnationrestatementsplural of restatementrestauranterOne who owns or operates a restaurant.restaurateurThe owner of a restaurant.restaurationObsolete form of restoration.resternotomy(surgery) A second or subsequent sternotomyrestigmatizeAlternative form of re-stigmatize.restitutableAble to be restituted.restitutionsplural of restitutionrestlessnessThe state or condition of being restless; an inability to be still, quiet, at peace or comfortable.restorationsplural of restorationrestorativesplural of restorativerestraighten(transitive) To straighten again.restrainableThat may be restrainedrestrainedlyIn a restrained way; with restraint.restrainmentThe act of restraining.restraintfulFull of restraint.restrategise(intransitive, chiefly UK) To form a new strategy.restrategize(intransitive, chiefly US) To form a new strategy.restreamline(transitive) To streamline again.restrengthento strengthen again, to make stronger againrestressable(construction) Capable of being stressed again.restrictableCapable of being restricted.restrictedlyTo a restricted extent.restrictionsplural of restrictionrestrictocinA protein ribotoxin present in fungi of the genus Aspergillusrestringency(obsolete) Quality or state of being restringent.restructuralOf or pertaining to a restructuring.restructuredsimple past and past participle of restructurerestructurerOne who, or that which, restructures.resubjectifyTo subjectify again.resubjectionA second subjection.resubmissionThe act or process of resubmitting; a second or subsequent submissionresubmittingpresent participle and gerund of resubmitresubscriberOne who resubscribes.resubstitute(transitive) To substitute again.resubversionThe process of subverting again.resultlesslyIn a resultless manner; without a result.resumabilityThe property of being resumable.resumptively(linguistics) In a resumptive manner; in terms of, or by means of, resumption.resupination(botany) The twisting of flowers or leaves by about 180° as they open.resuppressedsimple past and past participle of resuppressresurrectingpresent participle and gerund of resurrectresurrectionThe act of arising from the dead and becoming alive again.resurrectiveRelating to resurrection.resuscitableCapable of being resuscitated.resuscitatedsimple past and past participle of resuscitateresuscitatesthird-person singular simple present indicative of resuscitateresuscitatorA person or thing that resuscitates.resuspensionA second or subsequent suspension.resynthesiseAlternative form of resynthesize.resynthesizeTo synthesize again or anewretabulationThe act or process of retabulatingretainerlessWithout a retainer.retainershipThe practice of charging a retainer fee, or a client relationship based on such a fee.retardanciesplural of retardancyretardationsplural of retardationretardedness(offensive) The state or condition of being stupid.retargetableAble to be retargeted.retelliptineAn antineoplastic drug.retentionistA person who advocates retentionreteporiformForming colonies that are erect and fenestrate.rethermalize(of food) To reheat.rethrombosis(pathology) A second or subsequent thrombosisreticospinalMisspelling of reticulospinal.reticularianof or pertaining to ReticulariareticularityThe condition of being reticularreticulatelyIn a reticulate manner.reticulatingpresent participle and gerund of reticulatereticulationA network of criss-crossing lines, strands, cables or pipes.reticulocyteAn immature red blood cell, having a reticular network of RNAreticulogram(genetics) A graphical representation of a reticulate evolutionary structureretifanlimabA particular monoclonal antibodyretighteningpresent participle and gerund of retightenretinasphalt(mineralogy) Retinite.retinizationThe adjustment period in which the face adapts to a retinoid treatment.retinochrome(biochemistry) Any of a class of photosensitive pigment, related to rhodopsin, located primarily in the inner portions of the visual cells of cephalopodsretinocytoma(pathology) A benign form of retinoblastomaretinographyImaging of the retina, whether as a diagnostic aid or for identification purposes.retinologistOne who studies retinology.retinopathicRelating to retinopathy.retinophilin(biochemistry) A phosphoprotein in the photoreceptors of fruit fliesretinophoralOf or pertaining to retinophorae.retinoscopicRelating to retinoscopy.retinotectal(anatomy) Of or pertaining to the retina and the optic tectumretinylamine(organic chemistry) A diterpene amine related to retinolretinylidene(organic chemistry, especially in combination) The divalent radical formally derived from retinal by loss of an oxygen atomretiringnessThe quality of being retiring.retitelarianOf or relating to the Retitelae, a group of spiders.retopicalize(transitive) To topicalize again or anew.retopologize(transitive, computer graphics) To redefine the mesh of a 3D model at a lower resolutionretortamonadA microscopic flagellate of the order Retortamonadida, which are mostly found in the intestines of animals.retracementsplural of retracementretractation(archaic) retraction (of something previously said)retractilityThe quality of being retractile.retractivelyIn a retractive manner.retranscribe(transitive) To transcribe again.retransitionAnother transition.retranslatesthird-person singular simple present indicative of retranslateretranslatorOne who, or that which, retranslates.retransplantTo transplant (something) againretraumatiseAlternative form of retraumatize.retraumatize(psychology, transitive) To traumatize again or anew.retrenchableAble to be retrenched.retrenchmentA curtailment or reduction.retributionsplural of retributionretrievelessIrretrievable.retrievement(dated) retrievalretrieverishResembling or characteristic of a retriever dog.retriggeringpresent participle and gerund of retriggerretroareolar(anatomy) Behind (underneath) the areolaretroauricleA posterior auricleretrobulbaryAlternative form of retrobulbar.retrocardiac(anatomy, medicine) Located behind the heart.retrocecally(anatomy) Behind the cecum.retrocedencerecession, regression, retrogressionretrocessionThe transfer of risk from one reinsurer to another.retrocessiveTending to retrocede; moving backward.retrochoanal(anatomy) Behind the choanaretrochronalOperating backward in time, so that effects precede their causes.retroclivousAlternative form of retroclival.retroclusion(dated) An acupressure technique in which the pin passes behind the artery, after its point is made to describe the greater part of a semicircle.retrocorneal(anatomy) Behind a cornearetrodictionA form of "prediction" that deals with the past rather than the future, sometimes useful in testing theories whose actual predictions are too long-term to be of immediate use.retrodictiveOf or pertaining to retrodiction.retroduction(logic) Synonym of abduction.retroductiveRelating to retroductionretroelement(genetics) A retrotransposon.retrofashionAny fashion characterized by clothes associated with a previous era.retrofittingpresent participle and gerund of retrofitretroflectorretroreflectorretroflexionThe act of retroflexing; the state of being retroflexed.retroflexiveretroflex; backwardsretrofracted(botany) Synonym of retrofract.retrogenesisThe degeneration of faculties in Alzheimer's disease in the reverse order of that in which they were developed as a child.retroglenoid(anatomy) Behind the glenoidretroglossal(anatomy) Behind the tongueretrognathiaA malocclusion in which the maxilla or mandible is further posterior than would be expected.retrognathic(anatomy) Having a retrusive jaw.retrogradant(obsolete, astronomy, astrology) retrograderetrogradely(sciences) With a backward motionretrogradingpresent participle and gerund of retrograderetrogradismSupport for retrogression.retrogradistA supporter of retrogradismretrographicRelating to retrographyretrogrationretrogradationretrogressedsimple past and past participle of retrogressretrohepaticBehind the liverretroinsular(anatomy) Behind the insula of the cerebral cortexretrojection(medicine) The washing out of a cavity by the backward flow of an injected fluid.retrolaminar(anatomy, botany) Behind a laminaretrolateralOn the side and facing backwardsretrolingualServing to retract the tongue.retromammary(anatomy) Behind the mammary gland.retromastoidBehind the mastoid bone or mastoid processretromingent(not comparable) That urinates backwards; also used of such urination.retronasallyVia the back of the noseretroorbitalBehind the orbit of the eyeretropackageA cluster of retrorockets.retropalatal(anatomy) Behind the palateretropannageforage still available after pannageretropharynx(anatomy) The posterior part of the pharynx.retrophrenicLocated behind the diaphragm.retroplasmid(genetics) Any plasmid that replicates via reverse transcriptionretroplenialMisspelling of retrosplenial.retroposable(genetics) Able to undergo retropositionretropulsingAlternative form of retropulsion.retropulsion(medicine) A tendency to step or walk backwards involuntarily, especially as a symptom of parkinsonism.retropulsiveThat drives or forces back; repelling or repellant.retroreflect(transitive) To reflect in such a way that the reflected rays are parallel to the incident rays.retroserrate(botany, of leaves) Having tooth-like projections pointed away from the apex.retrosigmoid(surgery) Via the sigmoid colon in a direction from lower to upperretrospenialMisspelling of retrosplenial.retrosternal(anatomy) Located behind the sternumretrotorsion(anatomy) A twisting between the neck and condyle of a bone such as the femur beyond the established normalretrouterineLocated behind the uterus.retrovaccine(medicine) The virus produced in cows by retrovaccination.retroventralBehind a ventral regionretroversionA turning or falling back.retrovesicalBehind the urinary bladderretrovirallyIn a retroviral manner.retroviremia(pathology) The presence of a retrovirus in the bloodretrovirusesplural of retrovirusretrozonularBehind a zonulereturnlesslyWithout returning.retyrosinateTo undergo retyrosinationreulcerationulceration occurring againreunderstandTo reach a new or renewed understanding.reunionisticOf or relating to reunionism.reupholsteryThe act of reupholstering furniturerevaccinatedsimple past and past participle of revaccinaterevagination(surgery) vaginal cosmetic surgery or other cosmetic treatment of the vagina.revalescenceThe act of growing well, or recovering from illness; the state of being revalescent.revalidatingpresent participle and gerund of revalidaterevalidationThe act of revalidatingrevaluationsplural of revaluationrevastigmineMisspelling of rivastigmine.revealednessQuality of being revealed.revegetatingpresent participle and gerund of revegetaterevegetationThe act or process of revegetatingrevelationalOf or pertaining to revelationrevelatorilyIn a revelatory manner.revengefullyIn a revengeful manner.reverberancereverberationreverberatedsimple past and past participle of reverberatereverberatesthird-person singular simple present indicative of reverberatereverendnessQuality of being reverend.reverendshipAn appellation for a reverend.reverentnessQuality of being reverent.reverifiableCapable of being reverified.reversionaryA reversioner.reversionismReversionist beliefs or attitudes.reversionistOne who clings to previous patterns of behavior or thought, rejecting social or cultural change.revictimizerOne who revictimizes; an aggressor or bully who goes on to victimize the same person again, especially after some intervention or punishment.revirescenceA growing green or fresh againrevirginatedsimple past and past participle of revirginaterevirtualize(transitive, rare) To virtualize again.revisabilityThe state or quality of being revisablerevisionistsplural of revisionistrevisitationAn act of revisitingrevitalisingpresent participle and gerund of revitaliserevitalizantA fuel or oil additive that creates a cermet coating on internal engine parts.revitalizingpresent participle and gerund of revitalizerevivabilityThe state of being revivable.revivication(obsolete) The act of revivicating.revivificate(archaic, transitive) To revive; to revivify.reviviscenceThe act of reviving, or the state of being revived; renewal of life.reviviscencySynonym of reviviscence.revocabilityThe quality of being revocable.revocationalOf or relating to revocation.revokabilityAlternative form of revocability.revolatilizeTo volatilize againrevolutional(rare, nonstandard) revolutionaryrevolutioner(archaic) A revolutionary.revulsionary(medicine) Exhibiting or relating to revulsion.rewithdrawalThe act of withdrawing again.reznitskyite(mineralogy) A rare vanadate mineral with the chemical formula CaMg(VO4)F.rhabarbarate(obsolete) Impregnated or tinctured with rhubarb.rhabarbarineAlternative form of rhabarbarin.rhabditiformHaving the form of a nematode of the order Rhabditida.rhabdodontid(zoology) Any dinosaur in the family Rhabdodontidae.rhabdolithicRelating to rhabdoliths.rhabdomancerOne who carries out rhabdomancy; the user of a divining rod.rhabdomanticRelating to rhabdomancy.rhabdophobiaThe fear of magic or magic wands.rhabdophoranOf or relating to the Rhabdophora.rhabdosphereA minute sphere composed of rhabdoliths.rhachitomous(biology, of vertebrae) Having a large, dorsal, crescentic intercentrum, and a small, dorsal, paired pleurocentrum.rhacophorineAny frog of the subfamily Rhacophorinaerhadinoviralof or relating to rhadinoviruses.rhadinovirus(biology) Any of the genus Rhadinovirus of herpesviruses,.rhamnocitrin(organic chemistry) The cyclic ketone 3,5-dihydroxy-2-(4-hydroxyphenyl)-7-methoxychromen-4-onerhamnohexose(biochemistry) A carbohydrate with chemical formula C₇H₁₄O₆.rhamnomannan(biochemistry) A mannan derived from rhamnoserhamnosidase(biochemistry) Any enzyme that catalyzes the hydrolysis of a rhamnoside.rhamnosylateTo attach a rhamnosyl moiety to a molecule.rhamphothecaA thin horny sheath of keratin on the outer surface of a bird's beakrhaponticine(chemistry, obsolete) chrysophanic acidrhapsodisingpresent participle and gerund of rhapsodiserhapsodisticCharacteristic of a rhapsodist; rhapsodic.rhapsodizingpresent participle and gerund of rhapsodizerheomorphism(geology) The liquefaction of rock, and subsequent flowing and intrusion into surrounding rocksrhetologicalRelating to rhetology.rhetoricallyIn a rhetorical manner.rhetoriciansplural of rhetoricianrheumatalgia(pathology) chronic rheumatic painrheumatismalArchaic form of rheumatic.rheumatoidalAlternative form of rheumatoid.rheumatology(medicine) The branch of medicine specializing in arthritis and other ailments of the joints.rhinacanthinAny of a group of naphthoquinone esters isolated from the roots of Rhinacanthus nasutus, the snake jasmine.rhincodontid(zoology) Any whale shark in the family Rhincodontidae.rhineurynter(medicine, archaic) A dilatable bag, inserted into the nostril and inflated to arrest a profuse nosebleed.rhinocephalyrhinencephalyrhinocericalResembling or relating to the rhinoceros or its horn.rhinocerosesplural of rhinocerosrhinocerosin(biochemistry) An antibacterial protein present in larvae of a rhinoceros beetle, Oryctes rhinocerosrhinoceroticOf or pertaining to rhinoceros.rhinocerotid(zoology) Any member of the family Rhinocerotidae, the rhinoceroses.rhinocleisisSynonym of rhinostenosis.rhinocnesmus(pathology) rhinitis or other itchy condition of the noserhinocryptid(zoology) Any bird in the family Rhinocryptidae; a tapaculo.rhinologicalOf or pertaining to rhinology.rhinolophine(archaic, zoology) Like or pertaining to the rhinolophids, or horseshoe bats.rhinolophoidAny bat of the superfamily Rhinolophoidearhinopharynx(anatomy, rare) Synonym of nasopharynx.rhinophrynid(zoology) Any toad in the family Rhinophrynidae.rhinoplasticPertaining to rhinoplasty.rhinopomatid(zoology) Any member of the family Rhinopomatidae of bats; mouse-tailed bats.rhinorrhagiaA profuse nosebleed.rhinorrhoealAlternative form of rhinorrheal.rhinoscopistOne who performs rhinoscopy.rhinosurgery(surgery) Surgery to the nose.rhinovirusesplural of rhinovirusrhizocarpeanBelonging to the Rhizocarpeae, a former taxonomic group of cryptogams.rhizocarpous(botany) Having perennial rootstocks or bulbs, but annual flowering stems; said of all perennial herbs.rhizocretion(botany) A concretion on the roots of a plantrhizodeposeddeposed by or in a rhizomerhizodeposit(biology) Sloughed-off plant cells, in the rhizosphere, that are fed on by bacteria.rhizogenesis(botany) The production and development of roots or rhizomesrhizogeneticSynonym of rhizogenous.rhizokineticSynonym of acrodynamic.rhizological(botany) Of, or related to rhizology.rhizomorphalSynonym of rhizomorphic.rhizomorphicRelating to a rhizomorph.rhizophagousFeeding on roots.rhizophorous(botany) Bearing roots.rhizosecrete(botany) To secrete from a rhizome.rhizosphericOf or pertaining to the rhizosphere.rhizostomeanBelonging to the Rhizostomata, a former taxonomic suborder of jellyfish.rhocrematicsAlternative form of rhochrematics.rhodacyanine(organic chemistry) Any of a group of cyanines derived from rhodaninerhodaminatedTreated with rhodamine.rhodammonium(chemistry, obsolete) A cation, Rh₂(NH₃)₁₀⁶⁺, containing rhodium and ammonia.rhodarsenide(mineralogy) An orthorhombic brown mineral containing arsenic, palladium, and rhodium.rhodococosis(pathology) infection with bacteria of the genus Rhodococcus.rhododendric(organic chemistry) Derived from rhododendronsrhododendrol(organic chemistry) The phenol 4-[(3R)-3-hydroxybutyl]phenol used in some skin-lightening productsrhododendronAny of various flowering shrubs in the genus Rhododendron, especiallyrhodomontadeDated spelling of rodomontade.rhodomyrtone(organic chemistry) An antibacterial drug, 6,8-dihydroxy-2,2,4,4-tetramethyl-7-(3-methyl-1-oxobutyl)-9-(2-methylpropyl)-4,9-dihydro-1H-xanthene-1,3(2H)-di-one, isolated from rose myrtle (Rhodomyrtus tomentosa)rhodoquinone(organic chemistry) An O-demethylated quinone found in some helminths.rhodoxanthin(organic chemistry) A xanthophyll pigment found in many plants, and in bird feathers.rhodplumsite(mineralogy) A rare rhodium-lead sulphide mineral with chemical formula Rh₃Pb₂S₂.rhomboganoid(zoology) A fish of the obsolete suborder Rhomboganoidei, roughly corresponding to the gars (Holostei).rhombohedral(crystallography) Having three equal axes and oblique angles.rhombohedricrhombohedralrhombohedronA prism with six faces, each a rhombus.rhomboidallyIn the shape of a rhomboid.rhonchopathy(medicine) Rhonchus.rhopaloceralOf or relating to the Rhopalocera.rhopographicRelating to rhopography.rhyacophilid(zoology) Any caddis fly in the family Rhyacophilidae.rhymeabilityAlternative form of rhymability.rhynchobatid(zoology) Any wedgefish in the family Rhynchobatidae, a synonym of the Rhinidae.rhynchodaeumA cavity in some gastropods that contains the proboscis.rhynchonella(zoology) Any member of the extinct genus †Rhynchonella of brachiopod, found in Silurian to Eocene strata worldwide.rhynchostomeThe opening of the rhynchodaeum (in some gastropods) through which the proboscis emergesrhyparographA painter of sordid or distasteful subjects.rhythmicallyIn a rhythmical manner.rhythmizableAble to be rhythmized.rhythmlesslyWithout a rhythm.rhythmogenicRelating to rhythmogenesisrhythmometer(music) An instrument for marking time in music, e.g. a metronome.rhythmometryThe measurement of rhythms (typically biological or medical)rhythmopoeiaThe art of composing rhythmically.rhytidectomy(surgery) Plastic surgery to reduce the visible signs of aging in the face by removing wrinkles.rhytidosteid(zoology) Any extinct temnospondyl in the family Rhytidosteidae.ribauldequinA huge bow fixed on the wall of a fortified town for casting javelins.ribbonfishesplural of ribbonfishribofuranose(biochemistry) The furanose form of riboseribolysationAlternative form of ribolyzation.ribolyzationhomogenization in a ribolyserribonuclease(biochemistry) Any of a group of enzymes that catalyze the hydrolysis of ribonucleic acid.ribonucleate(clipping) A strand of ribonucleic acid.riboproteomeA ribosomal proteomeribopyranose(biochemistry) The pyranose form of riboseribosilation(biology) The addition of one or more ribose molecules to a protein.ribostamycin(pharmacology) A particular aminoglycoside antibiotic.ribosylation(biochemistry) The attachment of a ribose or ribosyl group to a molecule, especially to a polypeptide or proteinribotoxicityThe condition of being ribotoxicribozymology(rare) The study of ribozymes.ribulokinase(biochemistry) A transferase enzyme that catalyzes the chemical reaction ATP + L(or D)-ribulose ⇌ ADP + L(or D)-ribulose 5-phosphate.ricelessnessAbsence of rice.ricinelaidin(organic chemistry) The glycerin salt of ricinelaidic acid, obtained as a white crystalline waxy substance by treating castor oil with nitrous acid.ricinolamide(obsolete, organic chemistry) The amide or ricinoleic acid, C₃₆H₃₅NO₄rickettsemia(pathology) The presence of rickettsia bacteria in the bloodrickettsemicRelating to rickettsemiarickettsiaesMisspelling of rickettsias.rickshawlikeResembling or characteristic of a rickshaw.ricochettingpresent participle and gerund of ricochetridesourcingThe business of organising ridesharing between available drivers and potential passengers.ridgewalkingThe practice of scouring the countryside, normally on foot, in areas with cave potential. The objective is to locate new and previously undiscovered openings to the underground.ridicularity(nonstandard) Ridiculousness.ridiculosityThe quality of being ridiculous; absurdity.ridiculouslyIn a ridiculous manner. In a way that is funny, embarrassing or extremely implausible.ridinilazole(organic chemistry) An antibiotic 2,2'-di(pyridin-4-yl)-1H,1'H-5,5'-bi(benzimidazole)riflemanshipThe skill or art of shooting a rifle.rightclickedsimple past and past participle of rightclickrightfulnessThe state or quality of being rightful.righthandersplural of righthanderrightsholder(law) A person or organization that owns the legal rights to somethingrightshoringAlternative form of right-shoring.rightwingersplural of rightwingerrigidizationThe action, or the result, of making something rigidrigorisationRare spelling of rigorization.rigorizationConversion into a mathematically rigorous form.rigorousnessThe property of being rigorous, strictness.rijksdaalder(historical) A Dutch coin worth 2+¹⁄₂ guilders.rimbellisherAn ornamental ring for the hub of a car's wheel.rimkorolgite(mineralogy) A monoclinic-prismatic mineral containing barium, hydrogen, magnesium, oxygen, and phosphorus.ringlessnessAbsence of a ring or rings.ringmasterlyCharacteristic of a ringmaster.ringmistressA female ringmaster.rinseabilityThe quality of being rinseable.rintatolimodA medication for the treatment of chronic fatigue syndrome.riomarinaite(mineralogy) A monoclinic-prismatic mineral containing bismuth, hydrogen, oxygen, and sulfur.ripariannessQuality of being riparian.risankizumabA monoclonal antibody used to treat psoriasis and similar conditionsrisendronateMisspelling of risedronate.risibilitiesplural of risibilityrisklessnessAbsence of risk.ritelessnessAbsence of rites.ritlecitinib(pharmacology) A medication belonging to the class of Tec/Janus kinase inhibitors, used for the treatment of alopecia areata.rittingerite(mineralogy) xanthoconiteritualizableCapable of being ritualized.rivastigmine(pharmacology) A drug C₁₄H₂₂N₂O₂ that increases acetylcholine levels by inhibiting the action of cholinesterase and is used to treat dementia associated with Alzheimer's disease and Parkinson's disease.riverboarderOne who takes part in the sport of riverboarding.riverboatingtravel by riverboatriverboatmanSomeone who pilots a riverboatriversideite(mineralogy) An orthorhombic-disphenoidal white mineral containing calcium, hydrogen, oxygen, and silicon.roadbuildersplural of roadbuilderroadbuildingThe construction of roads.roadlessnessThe state or quality of being roadless.roadwarriorsplural of roadwarriorroastabilitySuitability for roasting.robophysicalRelating to robophysicsrobotisationAlternative spelling of robotization.robotizationThe automation of a system or process by use of robotic devices.robotrippingpresent participle and gerund of robotriprobustiouslyIn a robustious manner.rochlederite(rare) The resinous part of melanchyme.rockahominieAlternative form of rockahominy.rockclimbingAlternative form of rock climbing.rockhoundingThe activities of a rock hound; amateur geology.rocklessnessAbsence of rocks.rocksheltersplural of rockshelterrockumentaryA documentary about rock music or its musicians.rodenticidalServing to kill rodents, as a rodenticide.rodenticidesplural of rodenticideroentgenizedsimple past and past participle of roentgenizeroentgenizesthird-person singular simple present indicative of roentgenizeroisteringlyIn a noisy, drunken or riotous manner.roisterouslyIn a roisterous way.rolelessnessAbsence of a role.rollbackable(computing) Able to be rolled back.rollerbladedsimple past and past participle of rollerbladerollerbladerOne who rollerblades.rollerbladesplural of rollerbladerollerbottleAlternative form of roller bottle.rollerskatedsimple past and past participle of rollerskaterollerskaterOne who takes part in roller skating.rollerskatesplural of rollerskaterollerskiingA form of cross-country skiing using rollerskisrollickinglyIn a rollicking manner.rollingstockAlternative form of rolling stock.rolziracetamA nootropic drug of the racetam family.romanisationAlternative letter-case form of Romanisation: non-Oxford British English standard spelling of Romanization.romanizationAlternative letter-case form of Romanization.romanticallyIn a romantic way.romanticisedNon-Oxford British English standard spelling of romanticized.romanticizedsimple past and past participle of romanticizeromanticizerOne who romanticizes.romanticizesthird-person singular simple present indicative of romanticizeromanticnessThe state or quality of being romantic.ronneburgite(mineralogy) A monoclinic-prismatic reddish brown mineral containing magnesium, manganese, oxygen, potassium, and vanadium.rontalizumab(pharmacology) A humanized monoclonal antibody being investigated for the treatment of systemic lupus erythematosus.rooflessnessThe state of being roofless.roomlessnessAbsence of room or rooms.roommatehood(rare) The state of being a roommate.roommateshipThe state or relationship of being roommates.rooseveltite(mineralogy) A monoclinic-prismatic mineral containing arsenic, bismuth, and oxygen.roostertailsplural of roostertailrootlessnessThe property of being rootless.roquefortineAny of a group of toxic alkaloids found in various fungi, particularly Penicillium species.rosemarylikeResembling or characteristic of the herb rosemary (Salvia rosmarinus, syn. Rosmarinus officinalis).rosenbergite(mineralogy) A mineral with chemical formula AlF₃·3H₂O.rosenhahnite(mineralogy) A triclinic-pinacoidal mineral containing calcium, carbon, hydrogen, oxygen, and silicon.roseolovirusAny member of the genus Roseolovirus of viruses (HHV-6A, HHV-6B and HHV-7), causing roseola.rosetophilicrosetophylousrostafuroxinA derivative of digitoxigenin associated with salt gradients across membranesrostelliform(entomology) Having the form of a rostellum, or small beak.rostralwardsIn a rostral directionrostriferous(zoology) Having a rostrum.rostrocaudal(anatomy) With a direction parallel to the head-tail axis.rostrodorsal(anatomy) Near the back of the beak or of any beak-like projectionrostromedial(anatomy) medial to the rostrumrosuvastatin(organic chemistry, pharmacology) A statin (trademark Crestor) that is administered orally in the form of its calcium salt Ca(C₂₂H₂₇FN₃O₆S)₂ especially to treat hypercholesterolemia.rotatabilityThe ability of something to be rotatedrotationallyIn a rotational manner.rotavaporate(sciences) To evaporate in a rotavaporrotavirology(virology) The scientific study of rotaviruses.rotochemical(physics, astronomy) Describing the heating produced by various affects of the reduction in angular momentum of a rotating neutron star (especially a pulsar)rotomouldingrotational moldingrotonization(physics) The production of rotonsrotopulsator(mathematics) Any of a class of solutions to the n-body problem, in a curved space, whose configuration rotates during the motion.roughdrawingpresent participle and gerund of roughdrawroughhousingpresent participle and gerund of roughhouseroughishnessSlight roughness.roulettelikeResembling or characteristic of the gambling game of roulette.roundaboutlyIn a roundabout manner; indirectly.roundishnessThe quality of being roundish.roundspersonA worker who makes rounds, especially in order to deliver goods.rowanberriesplural of rowanberryrowdyishnessThe quality of being rowdyish.royalizationThe act or process of royalizing; making royal.rubberduckedsimple past and past participle of rubberduckrubberneckedsimple past and past participle of rubberneckrubbernecker(originally US) A person who rubbernecks; someone who cranes their neck as though it were made of rubber to see something (such as a tourist attraction) or to watch an event (such as an accident); a rubberneck.rubberstampsthird-person singular simple present indicative of rubberstamprubbingstoneAlternative form of rubbing stonerubblizationThe process of rubblizing (turning into rubble).rubefacience(dated, formal) rednessrubefacientsplural of rubefacientrubesanolide(organic chemistry) Any of a group of diterpenoid lactones present in Isodon rubescensrubificationThe act of making red.rubinylation(biochemistry) Modification by reaction with an RUB proteinrubixanthone(organic chemistry) A particular carotenoid.rubrerythrin(biochemistry) A non-haem iron protein involved in oxidative stress tolerance in anaerobic bacteriarubricationsplural of rubricationrubrofusarin(organic chemistry) The benzochromenone 5,6-dihydroxy-8-methoxy-2-methyl-benzo[g]chromen-4-onerubroolivary(anatomy) Relating to, or connecting the inferior olive and the parvocellular red nucleusrubrosulphinA toxic metabolite found in a number of fungi.rucklidgeite(mineralogy) A trigonal-hexagonal scalenohedral silver white mineral containing bismuth, lead, and tellurium.rudderlesslyIn a rudderless way.rudimentally(rare) In a rudimental way; involving only the rudiments or basics of something.rugopunctaterugose and punctaterugosimetricRelating to rugosimetry; by means of a rugosimeterrulebreakersplural of rulebreakerrulebreakingThe breaking of a rule or rules.rulelessnessAbsence of rules.rumbumptiousAlternative form of rumbustious.rumbunctiousAlternative spelling of rambunctious.rumgumptious(UK, dialect, archaic) shrewd; sharpruminatinglyWhile ruminating; with thought or meditation.ruminativelyIn a ruminative way.ruminococcalRelating to ruminococciruminococcinAny of a class of lantibiotics produced by some bacteria of the genus Ruminococcus.ruminococcusAny bacterium of the genus Ruminococcus.rumormongersplural of rumormongerrumourmongerAlternative spelling of rumormonger.rumpalicious(slang) Having shapely and appealing buttocks.rumplessnessThe condition of being rumplessrunemistressA female runemaster.ruralisationAlternative form of ruralization.ruralizationthe process of making rural.ruralpolitanAn urbanite who moves to the countryside, especially to start an agricultural venture.rursiradiate(malacology, of the ribs of a cephalopod shell) Inclined backward.russeliosideA particular steroid glycoside.russulaceous(mycology) Belonging to the family Russulaceae of mushrooms.rustlessnessThe state or condition of being rustless; absence of rust.rustproofingpresent participle and gerund of rustproofrutaecarpine(organic chemistry) An alkaloid present in Evodia rutaecarparuthenacycle(organic chemistry) Any cyclic organometallic compound of rutheniumruthenylatedReacted with ruthenium tetroxideruthlessnessThe property of being ruthless.
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