Browse Other O Word Lengths
13-Letter O Words by Ending Letter
All 1,125 13-Letter Words Starting With O
obedientiallyIn an obediential manner.obesificationThe action or the result of obesifyingobesogenicityThe quality of being obesogenic; the ability to cause obesity.obfuscationalRelating to or employing obfuscation; obfuscatory.obfuscatorilyIn an obfuscatory manner; so as to confuse or conceal.obfusticationSynonym of obfuscation.obiltoxaximabA monoclonal antibody medication designed to treat exposure to anthrax spores.objectifiableThat can be objectified.objectionableArousing disapproval; worthy of objection; offensive.objectionablyIn an objectionable manner.objectivationThe conversion of a concept or abstraction into an object.objectivenessThe characteristic of being objective; neutrality.objectivisticOf or pertaining to objectivism.objectivizingpresent participle and gerund of objectivizeobjectizationobjectificationobjectophiliaA paraphilia involving attraction to objects.objurgativelyin an objurgative or reproving mannerobjurgatorilyIn an objurgatory manner.obliquangular(archaic, geometry) Formed of oblique angles.obliterationsplural of obliterationobliviousnessThe characteristic of being oblivious.obmurmurationThe action or an instance of complaining or criticizing.obnoxiousnessThe characteristic of being obnoxious.obscurantistsplural of obscurantistobservability(uncountable) The state of being observable.observantnessQuality of being observant.observationalRelating to observation, especially scientific observation.observatorialRelating to an observatory.observatoriesplural of observatoryobservatorium(archaic or non-native speakers' English) An observatory.obsessionallyIn an obsessional manner.obsessivenessThe characteristic of being obsessive.obsolescencesplural of obsolescenceobsolescentlyIn an obsolescent manner.obstetrically(medicine) In terms of obstetricsobstetriciansplural of obstetricianobstetricious(obsolete) Serving to assist childbirth; obstetric.obstinatenessThe characteristic of being obstinate.obstipationalOf or relating to obstipation.obstructinglySo as to obstruct.obstructionalBeing or relating to an obstruction.obstructivelyIn an obstructive manner.obstructivismA tendency to obstruct the activities of others.obtainabilityThe property of being obtainable.obtenebration(obsolete) The act of darkening, or darkness.obtrapeziform(botany, of a leaf) trapeziform, but attached by the narrower trapezoidal baseobtrusivenessThe characteristic of being obtrusive.obtuanhydride(lichenolgy, biochemistry) A lichen-derived cyclic acid anhydride diterpene with IUPAC name (7aS,11aS)-2-hydroxy-8,8,11a-trimethyl-3-propan-2-yl-7a,9,10,11-tetrahydrobenzo[d][2]benzoxepine-5,7-dioneobtusaquinone(organic chemistry) The quinone methide (4E)-2-hydroxy-5-methoxy-4-[(E)-3-phenylprop-2-enylidene]cyclohexa-2,5-dien-1-one present in Dalbergia retusaobtusifolione(organic chemistry) A triterpenoid ketosteroid related to obtusifoliolobtusilactone(organic chemistry) Any of a group of unsaturated aliphatic cytotoxic lactones present in Lindera obtusilobaoccasionalism(philosophy, uncountable) A metaphysical doctrine that holds that all events are occasioned (caused) by God.occasionalistA proponent of occasionalism.occasionalityThe quality of being occasional.occassionallyMisspelling of occasionally.occidentaliseAlternative form of occidentalize.occidentalismThe habits and attitudes of westerners.occidentalistOne who studies occidental languages.occidentalityThe quality of being occidental.occidentalize(transitive) To convert or adapt to Western culture.occidiofunginAn actin-binding antifungal glycopeptide present in a Burkholderia bacteriumoccipitalisedModified by occipitalisationoccipitalizedAlternative form of occipitalised.occipitoaxial(anatomy) Of or pertaining to the occipital bone and second vertebra, or axis.occipitoiliac(anatomy) Of or relating to the occiput and the ilium.occipitonasalRelating to, or between, the occipital bone and the noseocclusivenessThe condition of being occlusive.occlusobuccal(dentistry) occlusal and buccaloccupationismCollaborationism.oceanodromous(of a migratory fish) that migrate within the seas onlyoceanographera person who studies oceanography, the science of oceansoceanographicrelating to oceanography, the science of oceansoceanologicalOf or pertaining to oceanology.oceanologistsplural of oceanologistochlocraticalPertaining to ochlocracy.ochyroceratid(zoology) Any spider in the family Ochyroceratidae.octaazacubaneA theoretical molecule composed of eight (8) nitrogen atoms only, in a cubic configuration, with each nitrogen (N) atom being a vertex on the cube, and bonding to three other nitrogens at the nearest three other vertexes. This is theorized to be the high explosive with the highest velocity, the most explosive non-nuclear explosive. It is an allotrope of nitrogen, and an analogue of the organic molecule cubane; and an isomer of octanitrogen (N₈).octacarbonate(chemistry) Any compound containing eight carbonate groups in each molecule or unit celloctacistronicRelating to or composed of eight cistrons.octacosanoate(organic chemistry) Any salt or ester of octacosanoic acidoctacosenoate(organic chemistry) Any salt or ester of an octacosenoic acidoctadecamericOf or pertaining to an octadecamer.octadecanoate(organic chemistry) Any salt or ester of octadecanoic acidoctadecenoate(organic chemistry) Any salt or ester of octadecenoic acid; oleate.octaglucosideAny glucoside that has eight glucose unitsoctaglutamate(organic chemistry) Any compound that has eight glutamate groups or anionsoctahedralityThe state or condition of being octahedral.octahistidine(especially in combination) polyhistidine that has eight monomersoctamanganese(chemistry, in combination) Eight manganese atoms or cations in a molecule (Mn₈)octamethylene(organic chemistry, especially in combination) Eight methylene groups in a molecule (typically in a row, with substituents or functional groups at each end)octanaldehyde(organic chemistry) Synonym of octanal.octanoylationreaction with octanoic acid (to form an octanoate)octantimonide(chemistry, in combination) Eight antimonide ions in a molecule (Sb₈)octapalladium(chemistry, in combination) Eight palladium atoms or cations in a molecule (Pd₈)octarticulateHaving eight joints or articulationsoctillionaireSomebody whose wealth is at least one octillion (10²⁷) currency units.octillionfoldBy a multiple of one octillion; by an octillion times as much or as many.octobrachiateHaving eight brachia, arms, or rays.octocentenaryAn eight-hundredth anniversary.octoclothepinSynonym of clorotepine.octocorallianAny coral of the subclass OctocoralliaoctocorallineOf or relating to the octocorals.octodactylous(zoology) Having eight fingers.octodecillion(US, modern British and Australian, short scale, rare) 10⁵⁷.octogenariansplural of octogenarianoctonaphthene(organic chemistry) A colourless liquid hydrocarbon, 1,3 dimethylcyclohexane, occurring in petroleum.octopoteuthid(zoology) Any squid in the family Octopoteuthidae.octosyllabicsplural of octosyllabicoctuplicationmultiplication by eightoctylaldehyde(organic chemistry) Synonym of octanal (especially n-octanal)octylammonium(organic chemistry) The univalent cation obtained by protonation of octylamine CH₃(CH₂)₇NH₃⁺ocularcentricCentred or focusing on vision.oculoauditoryRelating to vision and hearing.oculocephalicRelating to the eyes and head; applied to the Vestibulo–ocular reflex.oculocerebral(anatomy) Relating to the eye and the cerebrum.oculogyrationMovement of the eye about the anteroposterior axis; eye-rollingoculomotilityocular motilityoculoplasticssurgery dealing with the eye and related structuresoculorhinitis(pathology) inflammation of the mucous membranes of the eyelid and of the noseoculorotatory(anatomy) Serving to rotate the eye.oculoskeletalRelating to, or affecting the eyes and the skeletonoculosyphilis(medicine, rare) Ocular syphilis: the ocular component or manifestations of syphilis; syphilis's effects on the eyes. In modern nosology not entirely distinct from the rest of neurosyphilis; sometimes formerly differentiated as, or in parallel with, parasyphilis.odiferousnessThe quality of being odiferous.odometricallyBy means of, or in terms of, odometry.odonatologistOne who studies odonatology.odontoblasticRelating to odontoblasts.odontoclasticRelating to odontoclastsodontocomplexA complex of teeth or toothlike featuresodontogenesisThe formation and development of teethodontogeneticRelating to odontogenesis.odontoglossumAny of very many orchids of the genus Odontoglossum.odontographic(archaic) Of or pertaining to odontography.odontological(rare) referring or pertaining to odontology; dentalodontologistsplural of odontologistodontomachineRelating to trap-jaw ants of the genus Odontomachusodontomalacia(medicine, pathology) Abnormal softening of the teeth due to dysfunctional mineralization.odontometricsThe measurement of teethodontophorous(zoology, archaic) odontophoral.odontophrynidAny frog of the family Odontophrynidaeodontopleurid(paleontology) Any trilobite of the order Odontopleurida.odontorrhagia(dentistry) bleeding from the socket after removal of a toothodontosection(surgery) An incision into a toothodoriferosityodoriferousnessodoriferouslyIn an odoriferous manner.odorotriosideA particular steroid glycoside.odourlessnessAlternative spelling of odorlessness.oedematogenicThat produces oedemataoenanthotoxinA toxin found in hemlock water dropwort, Oenanthe crocata, and other plants of the genus Oenanthe.oenochemistry(chemistry) The chemistry of wineoenologicallyIn an oenological manner; with regard to the study of wine.oesophagalgiapain, especially neuralgia, in the oesophagusoesophagismusoesophageal spasmoesophagocele(medicine) A hernia of the mucous membrane of the oesophagus through its walls.oesophagogramAlternative form of esophagogram.oesophagotomyAlternative form of esophagotomy.oestrogenizedAlternative form of estrogenized.oestromimeticAlternative form of estromimetic.offencelesslyAlternative form of offenselessly.offenselesslyIn an offenseless manner.offensivenessThe quality of being offensive.offhandednessThe property of being offhand.officeholdersplural of officeholderofficeholdingThe holding of an office (formal role).officeseekingWishing to gain a certain position, often in politics.officialisingpresent participle and gerund of officialiseofficiousnessThe quality of being officious.offspringlessWithout offspring.ogdensburgite(mineralogy) An orthorhombic-dipyramidal mineral containing arsenic, calcium, hydrogen, iron, manganese, oxygen, and zinc.oleandrigenin(organic chemistry) One of several glycosides found in the leaves of the oleander plant.olendalizumabA particular anti-inflammatory monoclonal antibodyoleochemistryThe branch of chemistry that deals with oleochemicals.oleocystidium(mycology) A cystidium which is leaking an oily substance.oleomargarine(dated) Synonym of margarine.oleophobicityThe state or condition of being oleophobic.oleopneumaticRelating to oil and air.oleosaccharumAn oil-sugar; a preparation made by saturating thirty grains of sugar with one drop of volatile oil.olericulturalRelating to olericulture.olfactologistOne who studies olfactology.olfactometricOf or pertaining to olfactometry.olfactophiliaSexual arousal caused by certain smells or odors.olflactomedinMisspelling of olfactomedin.oligoalginateAn oligomeric form of alginate (alginic acid)oligoarginine(biochemistry) A relatively short polyarginine, especially one used to enhance cellular delivery of a drugoligocellular(biology) Having few cellsoligochaetousRelating to oligochaetes.oligoclonallyIn an oligoclonal manneroligocythemia(pathology) A deficiency in the number of erythrocytes in the blood.oligodactyliaAlternative form of oligodactyly.oligodendromaAlternative form of oligodendroglioma.oligodenylateMisspelling of oligoadenylate.oligoepilepsyA form of epilepsy in which the patient has only a few seizuresoligoethylene(organic chemistry, especially in combination) Several ethylene groups in a molecule (typically in a row, but separated from each other by an atom such as oxygen)oligofectaminAlternative form of oligofectamine.oligofluorene(organic chemistry) Any of a class of aromatic polycyclic hydrocarbons consisting of several fluorene units attached end to end.oligofractionAnything composed of several fractions (in any of several contexts)oligofructose(biochemistry) Any oligosaccharide composed of fructose residues.oligogenicity(medicine) The quality of being oligogenic, i.e. involving a few genes.oligohidrosisSynonym of hypohidrosis.oligolamellarConsisting of a few layersoligolecithal(biology) Having a small amount of yolk in the cytoplasmoligomannosyl(organic chemistry, in combination) Several mannosyl groups in a moleculeoligomerationSynonym of oligomerization.oligomericityThe quality of being oligomeric or an oligomer.oligoneuronalRelating to a few neuronsoligonutrientA micronutrient that is needed in slightly larger amountsoligopeptidesplural of oligopeptideoligopeptidic(biochemistry) Relating to oligopeptidesoligopetalous(botany) Having few petals.oligopithecid(zoology) Any extinct monkey in the family Oligopithecidae.oligopolisticHaving the character of, or dominated by, an oligopolyoligoribosomeA short polyribosomeoligorotaxane(organic chemistry) Any compound having the form of several rotaxane moietiesoligosaprobic(ecology) Relating to, or inhabiting a body of water containing some decomposing organic matter and thus only a little dissolved oxygenoligosequenceA sequence of several things, especially an oligonucleotideoligosiderite(mineralogy) A meteorite characterised by a small amount of metallic iron.oligosiloxane(organic chemistry) Any polysiloxane having a relatively small number of -Si-O- groupsoligospecific(taxonomy) Having few species included.oligospermous(botany) Having or bearing few seeds.oligostilbene(organic chemistry) Any polystilbene with a relatively low number of stilbene units.oligosulphideAlternative form of oligosulfide.oligosyllabicHaving relatively few syllablesoligosyllableAny oligosyllabic wordoligosynapticRelating to several synapsesoligotrichous(biology) Relating to, or characteristic of, an oligotricholigotropicalMisspelling of oligotrophic.oligovascularRelating to, or affecting several blood vesselsoligoviologen(organic chemistry) Any compound composed of several viologen moietiesoligrotrophicMisspelling of oligotrophic.olistostromicRelating to olistostromes.olivocochlear(anatomy) Pertaining to the superior olivary complex and cochlea.omaveloxolone(pharmacology) A synthetic oleanane.ombudsmanshipThe position or office of an ombudsman.ombudspersonsplural of ombudspersonomnicarnivore(biology) An animal that eats many types of other animalomnicausalityThe quality of being omnicausal.omnichromatic(rare) Panchromatic; of or having all colors.omnicompetentCompetent in every area.omnicorporealComprehending or including all bodies; embracing all substance.omnicredulityThe quality of being omnicredulous.omnicredulous(rare) Believing in everything.omnifariouslyIn an omnifarious manner.omniherbivore(biology) An animal that eats many types of plant.omnilaterallyIn an omnilateral fashion.omnipotentialAllowing for every possibility; unlimited in potential.omnipresentlyIn an omnipresent manner.omniprevalentPrevalent everywhere or in all things.omnirelevanceThe quality of being omnirelevant.omniscientistA person who is knowledgeable in all the sciencesomnisentience(religion) Sensory awareness of all things.omnisexualityPansexuality.omnishambolic(UK, informal, rare) Being or relating to an omnishambles; utterly mismanaged.omnisovereign(rare) Absolutely sovereign.omnispatiallyThroughout space; everywhere in space.omnisubjugant(rare) Subjugating all others.omnitruncatedGenerated or modified by an omnitruncation.omnivicariousPermanently vicarious; shape-shifting; identity-grabbing.omoclavicular(anatomy) Of or pertaining to the shoulder and the clavicle.omoplatoscopydivination by use of a shoulder bladeomphalophobia(rare) Fear of navels.onanisticallyIn an onanistic manner.onchobothriidAny tapeworm of the family OnchobothriidaeonchocercosisSynonym of onchocerciasis.oncoapoptosisThe apoptosis of cancer cells, especially when induced therapeuticallyoncoapoptoticRelating to oncoapoptosis.oncofertilityFertility despite cancer.oncogenicallyIn an oncogenic manneroncogeriatricRelating to cancer in elderly patientsoncologicallyWith regard to oncology.oncometabolicRelating to oncometabolism or to oncometabolitesoncomodulatorAny material that modifies the progress of a canceroncopathology(pathology) The pathology of canceroncopromotingThat promotes canceroncoproteomicRelating to oncoproteomes or to oncoproteomics.oncoregulatorAny material, typically a protein, that regulates the onset and development of a canceroncosupressorMisspelling of oncosuppressor.onehandednessAlternative form of one-handedness.oneirocritickObsolete form of oneirocritic.oneirocriticsplural of oneirocriticoneirologicalRelating to oneirology.oneironauticslucid dreaming, the ability to explore dreams.oneirophrenia(psychiatry) A hallucinatory, dream-like state caused by sleep deprivation, drugs, etc.oneirophrenicRelating to oneirophrenia.oneiroscopistSomeone who interprets dreams.oneirotherapyAny of various forms of psychotherapy relying on visual imagery and symbolism.onomasiologicAlternative form of onomasiological.onomasticallyIn an onomastic way.onomatologist(dated) onomasticianonomatophobia(rare) The fear of hearing particular names or words.onomatopoeial(obsolete, rare) Of or pertaining to onomatopoeia.onomatopoeian(obsolete) A word formed by onomatopoeia.onomatopoeiasplural of onomatopoeiaonomatopoeicsThe use of onomatopoeia.onomatopoesisonomatopoeiaonomatopoetic(uncommon) Synonym of onomatopoeic.onomatopoetryA type of poetry based around onomatopoeia.ontogenicallyWith regard to ontogenyontographicalRelating to ontography.ontologicallyIn an ontological manner.ontopragmaticRelating to ontopragmatics.onychomadesisPeriodic idiopathic shedding of the nails beginning at their proximal ends, possibly caused by the temporary arrest of the function of the nail matrix.onychomycosisFungal infection of the nail, especially the toenail.onychomycoticRelating to or affected by onychomycosis.onychophagist(rare) A person who bites his or her fingernails.onychophoransplural of onychophoranonychorrhexis(pathology) fingernail and toenail brittleness and breakage, such as may be due to excessive strong soap and water exposure, nail polish remover, hypothyroidism, anemia, anorexia nervosa or bulimia, or after oral retinoid therapy.onychoschisis(pathology) A condition where the nails split into layers.onychoschiziaSynonym of onychoschisis.onychoteuthid(zoology) Any squid in the family Onychoteuthidae.oocytectomiseTo carry out an oocytectomyoocytogenesisThe creation and development of oocytesoomyceticidalThat kills oomycetesoosporiferousBearing oospores.ootidogenesis(biology) The part of oogenesis leading to the formation of ootidsopacificationThe action of making something opaque or cloudy.openheartedlyAlternative form of open-heartedly.openmouthedlyWith the mouth open, especially in astonishment.operafication(rare) The act or process of operafying.operationallyIn an operational manner; in accordance with an operation.operativeness(uncountable) The state or quality of being operative.operculectomy(surgery) The surgical procedure of removing the operculum.operonization(genetics) The formation of operons in a genomeophiacodontid(zoology) Any synapsid in the family Ophiacodontidae.ophidianosideA particular steroid glycoside.ophidiasterid(zoology) Any starfish in the family Ophidiasteridae.ophidiophobiaOphiophobia; a fear of snakes.ophidiophobicrelating to ophidiophobia; having fear of snakesophiochitonidAny brittle star of the genus Ophiochitonophiodermatid(zoology) Any brittle star in the family Ophiodermatidae.ophioleucinidAny brittle star of the family Ophioleucidaeophiomorphite(paleontology, obsolete) An ammonite.ophiomorphous(archaic) Having the form or shape of a snake.ophionereididAny brittle star of the family Ophionereididaeophthalmalgia(medicine) pain in the eyeophthalmalgicRelating to ophthalmalgia.ophthalmology(medicine) The anatomy, functions, pathology, and treatment of the eye.ophthalmosaurAny of the genus †Ophthalmosaurus of ichthyosaurs.ophthalmostat(surgery) A device that holds the eye steady during an operationophthalmotomy(surgery) dissection of or incision into the eyeopinionatedlyIn an opinionated manner.opinionmakingThe process of influencing the public in their opinions.opioidophobia(medicine) The aversion to prescribing, administering or taking opioid medications for fear of addiction.opisthobranch(zoology) A gastropod with gills behind the heart, formerly thought to belong to a single group.opisthocomine(zoology, ornithology) Of or pertaining to birds of the family Opisthocomidae, which is represented by the sole extant genus Opisthocomus and species Opisthocomus hoazin (hoazin).opisthographyA writing upon the back of anything, as upon the back of a sheet already written upon on one side.opisthogyrateThat curves toward the posterioropisthomeriteThe posterior gonopods of a millipede of the infraclass Helminthomorphaopisthorchiid(zoology) Any trematode flatworm in the family Opisthorchiidae.opisthothorax(anatomy) The portion of the thorax behind the prothorax.opistognathidAlternative spelling of opisthognathid.oppignerationAlternative form of oppignoration.oppignoration(obsolete) The act of pawning or laying in pledge.opportuneless(rare) Devoid of opportunity.opportunenessThe state or condition of being opportune.opportunisticTaking advantage of situations that arise.opportunitiesplural of opportunityopportunivoreA person who subsists on still-edible food that has been or was going to be discarded.oppositionaryoppositionaloppositionismA policy of opposition (principally in politics)oppositionistA person who opposes; especially a member of an official oppositionoppressionismSynonym of oppression.oppressionistTaking part in or promoting oppression.opprobriation(rare, literary) Scornful reproach or disapproval; opprobrium.opprobriouslyIn an opprobrious manner.opsonotherapy(medicine) treatment by increasing the opsonin levels in the bloodstreamopthalmoscopeMisspelling of ophthalmoscope.optimizationsplural of optimizationoptoacousticsoptoacoustic interactions generallyoptocapillary(physics) Relating to the interaction of light on capillary effectsoptochemokineA chemokine that is activated by lightoptoelectrodeAn optoelectric electrodeoptogeneticalAlternative form of optogenetic.optoinjectantA material that is optoinjectedoptoinjectionoptical injection, photoinjection (of nucleic acids)optoisolationisolation of part of an electrical circuit by means of an optoisolatoroptomagnonics(physics) The study of optical magnonsoptomechanics(optics, mechanics) The design and manufacture of precision mechanical components of optical devicesoptoplasmonic(physics) optical and plasmonicoraculousnessThe state or condition of being oraculous.orangeblossomUncommon form of orange blossom.orangutanlikeResembling an orangutanorbitestellid(zoology) Any sea snail in the family Orbitestellidae.orbitofrontalLocated in the frontal lobes above the orbits of the eyes.orbitographicRelating to orbitography (both senses)orbitolateral(anatomy) lateral to the orbit of the eyeorchesographyAn enhanced form of choreography that includes details of the music to accompany the danceorchestralessWithout an orchestra.orchestralistA musician who performs as part of an orchestra.orchestratingpresent participle and gerund of orchestrateorchestration(uncountable, music) The arrangement of music for performance by an orchestra.orchestratorsplural of orchestratororchideliriumSynonym of orchidomania.orchidologistOne who studies orchids.orchidomaniacA person who is passionate about collecting or raising orchids.orchiectomiesplural of orchiectomyorchiectomize(surgery) To carry out an orchiectomy.orciprenaline(pharmacology) A bronchodilator used in the treatment of asthma.orderlessnessAbsence of order; chaos.ordoliberallyIn an ordoliberal manner.oreasterosideA particular steroid glycoside.oreinirostralHaving a tall, domed beak or snout.oreographicalOf or pertaining to oreography.organellomics(biochemistry) The branch of cell biology that studies the structure and function of organelles in an organism.organicalnessThe quality or state of being organicorganisationsplural of organisationorganizationsplural of organizationorganlessnessAbsence of organs.organoarsenic(organic chemistry) Describing any organic compound containing a carbon to arsenic bondorganobismuth(organic chemistry) Describing any organic compound containing a carbon to bismuth bondorganoboronicOf or pertaining to an organoboronic acid or derivative.organobromine(organic chemistry) Describing an organic compound containing one or more bromine atoms.organocadmium(organic chemistry) Describing any organic compound containing a carbon to cadmium bondorganocaesiumAlternative form of organocesium.organocalcium(organic chemistry) Describing any organic compound containing a carbon to calcium bond.organocentricCentred on organic lifeorganoclastic(chemistry) Relating to chemical breakdown by reaction with organic matterorganocultureThe tissue culture of whole organsorganocuprate(organic chemistry) Any organic cuprateorganogallium(organic chemistry) Describing any organic compound containing a carbon-to-gallium bond.organogelatorAny material which, when added to an organic solvent, creates an organogelorganogenesesplural of organogenesisorganogenesis(biology) the formation and development of the organs of an organism from embryonic cellsorganogeneticRelating to organogenesis.organogermane(organic chemistry) Any simple organogermanium compound (equivalent to a hydrocarbon or silane)organographerOne who studies organography.organographicOf or relating to organography.organohafnium(organic chemistry) Describing any organic compound containing a carbon-to-hafnium bond.organohalogen(organic chemistry) Describing an organic compound containing one or more halogen atoms.organoheteryl(organic chemistry) any univalent radical, containing carbon, but which has its free valence at an atom other than carbonorganoiridium(organic chemistry) Describing any organic compound containing a carbon to iridium bond.organolithium(organic chemistry) Describing any organic compound containing a carbon to lithium bond.organologicalOf or relating to organology.organomercury(organic chemistry) Describing any organic compound containing a carbon to mercury bond.organomineralComposed of both organic and mineral componentsorganoniobium(organic chemistry) Describing any organic compound containing a carbon to niobium bond.organonitrate(organic chemistry) Any organic nitrate ester.organophorousMisspelling of organophosphorus.organoplastic(biology) Having the property of producing the tissues or organs of animals and plants.organorhenium(organic chemistry) Describing any organic compound containing a carbon to rhenium bond.organorhodium(organic chemistry) Describing any organic compound containing a carbon-to-rhodium bond.organosilanol(organic chemistry) Any organic silanolorganosiliconAny compound of this kind.organosomaticRelating to a body organ and the rest of the body, but especially to the ratio of their weightsorganostannic(organic chemistry) organotinorganostibine(organic chemistry) Any organic derivative of stibine having at lease one carbon to antimony bondorganosulfate(organic chemistry) Any organic sulfate esterorganosulfide(organic chemistry) Also referred to as thioethers, a class of organic compounds RSR', where R and R' represent an alkyl group or other organic substituent. If R' is hydrogen, it is instead referred to as a thiol, or mercaptan.organosulphur(chemistry) Alternative spelling of organosulfur.organotherapy(medicine) The therapeutic use of the endocrine organs (or glandular extracts) of animals.organothorium(organic chemistry) Describing any organic compound containing a carbon to thorium bond.organotrophic(biology) Relating to the creation, organization, and nutrition of living organs or partsorganotropismThe affinity of certain substances, or of certain microorganisms, for particular tissues or organs.organotypicalAlternative form of organotypic.organouranium(organic chemistry) Describing any organic compound containing a carbon-to-uranium bond.organoyttrium(organic chemistry) Describing any organic compound containing a carbon to yttrium bond.orgiasticallyIn an orgiastic fashion.orientabilityThe condition of being orientableorientalisingpresent participle and gerund of orientaliseorientationalOf or pertaining to orientation.orientifolded(mathematics) Converted into an orientifoldoriginalisticOf or related to originalism.originarinessThe quality of being originary.originativelyIn an originative manner.orismologicalOf or pertaining to orismology.ornamentalismAny artistic or architectural style characterised by ornamentation.ornamentalistAn artist who favours an ornamental style.ornamentality(uncountable) The quality of being ornamental.ornamentalize(transitive) To make ornamental.ornamentationDecoration, adornment or embellishment.ornithichnite(paleontology) A fossilised footprint left by a bird.ornithinaemiaAlternative form of ornithinemia.ornithischianAny of the order Ornithischia of typically herbivorous dinosaurs that have a pelvic structure similar to that of birds.ornithivorousfeeding on birdsornithochoric(biology) Relating to ornithochoryornitholestid(zoology, very rare) Any member of the family †Ornitholestidae, now superseded by family †Compsognathidae.ornithologistA person who studies or practices ornithology.ornithologize(intransitive, uncommon) To practise ornithology.ornithomanticRelating to ornithomancy.ornithophagicThat feeds on birdsornithophiliaLove for birds.ornithophobicHaving or relating to ornithophobia, the fear of birds.ornithopodous(zoology) Having feet like those of a bird.ornithoscopicRelating to birdwatching.ornithosuchid(zoology) Any pseudosuchian in the family Ornithosuchidae.ornithotomist(dated) Someone who is skilled in ornithotomy.ornithsichianMisspelling of ornithischian.oroalimentaryRelating to the mouth and to digestionoroesophageal(medicine) Of or relating to the mouth and the esophagus.oroheliograph(photography) A camera for obtaining a circular panoramic view of the horizon. The photographic plate is placed horizontally with a vertical lens above. A specially-shaped mirror reflects light from the entire horizon to the lens, by means of which it is focused upon the plate.oromandibular(anatomy) Relating to the mouth and mandible.oropharyngeal(anatomy, relational) Of or pertaining to both the mouth and the pharynx.orotracheallyIn an orotracheal mannerorphanotrophyA hospital for orphans.orthoarsenite(inorganic chemistry) The simple oxyanion of arsenic AsO₃³⁻; any salt containing this anionorthobenzoate(organic chemistry) Any orthoester, formally derived from benzoic acid, of general formula C₆H₅-C(OR)₃orthobicupola(mathematics) A bicupola in which the bases have the same orientationorthobiologic(surgery) A biological material used to improve the healing of broken bones and injured muscles, tendons and ligamentsorthocclusion(dentistry, orthodontics) Normal occlusion.orthocephalicnormocephalicorthoceracone(malacology) A shell which has a straight cone shape.orthoceratiteAn orthoceras, or fossil shell thereof.orthoceratoidAny extinct cephalopod of the subclass †OrthoceratoideaorthochoaniteAny nautiloid cephalopod of the suborder Orthochoanitesorthochromasy(chemistry) The property of a stain to not change color when binding to something else.orthochromiteAny of a group of mixed oxides of chromium and another metal (typically a rare earth element) of general formula MCrO₃orthochronous(mathematics) Describing any Lorentz transformation or Galilean transformation which preserves the direction of timeorthocumulate(geology) A cumulate rock in which the groundmass is of different composition to the accumulated crystals.orthodenticleA homeobox gene involved in the development of the head.orthodiagonal(mathematics, of a quadrilateral) Having diagonals that are perpendicular to each other.orthodiagraphAn instrument used to determine the true contour and dimensions of any internal organ or other object rendered visible by X-rays, the latter being deflected so as to be made parallel.orthodiphenol(organic chemistry) Any diphenol in which the two hydroxyls are in the ortho positionorthodontistsplural of orthodontistorthodoxalityThe quality of being orthodox.orthodromicalMisspelling of orthodromic.orthoepicallyIn an orthoepical manner: pronounced correctly or in accordance with standard usage.orthogeneticsorthogenesisorthogenomics(genetics) The application of genomics to orthopedicsorthognathism(anatomy) The quality of being orthognathous.orthognathous(anatomy) Straight-jawed.orthogonaliseAlternative form of orthogonalize.orthogonality(mathematics, statistics, software engineering) The property of being orthogonal.orthogonalize(transitive) To make orthogonal.orthographersplural of orthographerorthographickObsolete form of orthographic.orthographiesplural of orthographyorthographiseAlternative form of orthographize.orthographistOne who is versed in orthography.orthographizeTo spell correctly or according to usage or pronunciation.orthohydrogen(physics) form of the hydrogen molecule (H₂) in which the two nuclei have parallel spin; about 75% of natural hydrogenorthologouslyIn regard to, or by means of orthologyorthomegodont(paleontology) Being or having teeth with a nonelongated crown and symmetrical median labial lobe, especially in rodents such as zokors.orthomorphism(mathematics) A morphism that is also a permutationorthonormally(mathematics) In an orthonormal mannerorthopaedicalPertaining to orthopaedics; characteristic of orthopaedia.orthopaedistsplural of orthopaedistorthopedagogyThe teaching of correct behaviourorthoperiodic(inorganic chemistry) Relating to orthoperiodic acidorthophlebiidAny scorpionfly of the family Orthophlebiidaeorthophotomap(cartography) A map in the form of an orthophotomosaic.orthophthalic(organic chemistry) Relating to ortho isomers of phthalic compoundsorthopinacoid(crystallography) Either of the two planes in the monoclinic system which are parallel to the vertical and orthodiagonal axes.orthopoxviralOf or relating to orthopoxviruses.orthopoxvirusAny of the genus Orthopoxvirus of poxviruses, including smallpox and many species isolated from mammals.orthopraxicalorthopracticorthopyroxene(mineralogy) Any pyroxene that forms orthorhombic crystals.orthopyroxineMisspelling of orthopyroxene.orthoradiallyIn an orthoradial manner.orthoreoviralRelating to the orthoreovirusesorthoreovirusAny virus of the genus Orthoreovirus that infect vertebrates, normally without causing diseaseorthorrhaphanAny fly of the infraorder Orthorrhaphaorthosilicate(inorganic chemistry) Any salt or ester of orthosilicic acid, (M⁺)₄SiO₄⁴⁻ or Si(OR)₄.orthospermous(botany) Having the seeds straight, as in the fruits of some umbelliferous plants.orthostichous(botany) Having orthostichies.orthotectonic(geology) Produced by an orthogeosynclineorthovanadate(inorganic chemistry) The oxyanion of vanadium VO₄³⁻ or any salt containing this ionorthropteroidMisspelling of orthopteroid.ortokeratosisMisspelling of orthokeratosis.ortotopicallyMisspelling of orthotopically.orycteropodid(zoology) Any member of the Orycteropodidae, the aardvark and its extinct relatives.oryctognostic(obsolete) Relating to oryctognosy.oryctographicRelating to oryctography.oryctological(obsolete) Of or pertaining to oryctology.oryctozoologyThe zoology of fossilsoryzacystatinA cysteine proteinase inhibitor of rice.osajaxanthoneA yellow pigment found in certain plants.oscillationalRelating to oscillation.oscillativelyIn an oscillative manner.oscillatorilyIn a way of oscillations or oscillators.oscillographsplural of oscillographoscillographyMeasurement by means of an oscillograph.oscillometricOf or pertaining to oscillometry.oscillopathic(pathology) Relating to or characteristic of oscillopathiesoscilloscopicRelating to, or carried out by using an oscilloscopeosmobalancingThe balancing of osmotic pressureosmocompetent(ichthyology) Of a fish, able to cope with differing levels of salinity.osmoconformerAny marine invertebrate that maintains its internal salinity such that it is always equal to the surrounding seawaterosmofragilityosmotic fragility - the fragility of cells when in a saline solutionosmophobicityThe condition of being osmophobicosmoprotectorAny material that provides osmoprotection.osmoreceptionThe action of an osmoreceptorosmoreceptiveThat functions as an osmoreceptorosmoregulatorAny organism that practices osmoregulationosmoresistant(biology) resistant to high salt concentrationsosmosensation(nematology, neurology) The sensory perception of osmotic pressureosmosensitive(biology) sensitive to high salt concentrationsosmosignalingbiological transmission of signals as a result of osmosensingosmotoleranceThe quality or degree of being osmotolerant.osphresiologyThe scientific study of smells.osseomuscularAlternative form of osteomuscular.ossiculectomy(surgery) The excision of an ossicle (a small bone of the ear) or of the auditory ossicles.ostariophysanAlternative form of ostariophysian.ostensibilityThe quality of being ostensible.ostentativelySynonym of ostentatiously.osteoanabolicThat generates new boneosteoblastoma(oncology) an uncommon osteoid tissue-forming primary neoplasm of the boneosteochondral(anatomy) Pertaining to bone and cartilage.osteoclastoma(oncology) A tumor of bone characterized by the presence of giant, multinucleated cellsosteofibrosisfibrotic osteodystrophyosteofibroticRelating to osteofibrosis.osteofixationThe fixation of broken bones by means of metal plates and screwsosteogenicity(uncountable) The condition of being osteogenicosteoglossoidAny fish of the suborder OsteoglossoideiosteoinducingThat induces the formation of bone tissueosteoinductorAny material that causes osteoinductionosteolepiform(zoology) Any extinct fish of the order OsteolepiformesosteometricalAlternative form of osteometric.osteomuscularRelating to bone and muscleosteomyeliticOf or relating to osteomyelitis.osteomyelitis(pathology) An infection of the boneosteonecrosis(pathology) Avascular necrosis.osteonecroticOf or relating to osteonecrosis.osteopathistsplural of osteopathistosteopetrosis(pathology) A rare hereditary disorder characterized by hard, dense bones.osteopetroticRelating to osteopetrosisosteophageousAlternative form of osteophagous.osteophytosis(medicine) The presence of osteophytesosteophytoticRelating to osteophytosis.osteoplastiesplural of osteoplastyosteopontininMisspelling of osteopontin.osteoporosityAn area of osteoporosisosteosclereidA sclereid that forms the hypodermal layer in many fruits and seeds.osteoskeletal(anatomy) Relating to the bones of the skeletonosteospecificspecific to bone tissueosteospheroidA spheroidal cluster of stem cells grown on an osteoconductive scaffoldosteotechnicsThe technology of boneosteotomizingpresent participle and gerund of osteotomizeosteotoxicityThe condition of being osteotoxicosteotrophismMisspelling of osteotropism.osteozecathiaThe process in which the body moves calcium from one bone to another.ostracisationAlternative form of ostracization.ostracizationThe state of being ostracized.ostracodologyThe scientific study of ostracods.ostreacultureArchaic spelling of ostreiculture (“oyster farming”).ostreicultureoyster farmingostreophagist(archaic) Someone who eats oysters.ostreophagousoyster-eatingostricizationMisspelling of ostracization.ostrobogulous(humorous) Slightly risqué or indecent; bizarre, interesting, or unusual.oteseconazoleA medication for the treatment of vaginal yeast infections.otherwiseness(philosophy) The quality of being otherwise.otherworldish(rare) otherworldlyotoacousticalSynonym of otoacoustic.otoendoscopicRelating to otoendoscopyotolithometryThe measurement and classification of otolithsotomandibular(anatomy) Relating to the ear and mandible.otomicroscopeAn otoscopic microscopeotomicroscopyThe diagnostic use of an otomicroscopeotoneurologicOf or pertaining to neurologic aspects of hearing and the earotopathogenicRelating to an otopathogenotophyllosideA particular steroid glycoside.otoprotectantAny material that protects the ear from damageotoprotectionprotection against ototoxicityotoprotectiveThat protects against ototoxicity or other damage to the earotorhinogenicThat originates in the ear and the noseotoscopicallyBy means of otoscopy or an otoscopeotosphenoidalRelating to the ear and the sphenoid boneotovestibularRelating to the vestibule of the earoutaccelerate(transitive) To accelerate faster than.outcompliment(transitive) To offer more compliments than.outdoorswomanA woman who spends time in outdoor pursuits or sports.outergarmentsplural of outergarmentoutfangenthef(historical, law) Alternative form of outfangthief.outmaneuveredsimple past and past participle of outmaneuveroutmanipulate(transitive) To surpass in manipulation or scheming.outmanoeuvredsimple past and past participle of outmanoeuvreoutperformingpresent participle and gerund of outperformoutphotograph(transitive) To take more or better photographs than.outplacementsplural of outplacementoutrecuidance(archaic) Presumption, arrogance, self-conceit.outriggerlessWithout an outrigger.outsettlementA settlement away from the main one.outsourceableCapable of, or suitable for, being outsourced.outspokennessThe quality of being outspoken.outstandinglyIn an outstanding manner.outstrategize(transitive) To defeat with superior strategy.outstretchingpresent participle and gerund of outstretchovarectomizedAlternative form of ovariectomized.ovariectomiesplural of ovariectomyovariectomiseAlternative form of ovariectomize.ovariectomize(transitive) To remove the ovaries from.overabduction(medicine) Hyperabduction.overaboundingpresent participle and gerund of overaboundoverabundanceAn excess of what is needed or is appropriate.overachieversplural of overachieveroverachievingpresent participle and gerund of overachieveoveractivatedactivated too often, or to too great a degreeoveraddictionExcessive addiction.overadduction(medicine) Hyperadduction.overadorationExcessive adoration.overadornmentExcessive adornment.overadvantageThe state or condition of having excessive advantage.overadvertiseTo advertise excessively.overaggravate(transitive) To aggravate excessively.overalertnessThe quality of being overalert.overalignment(computing) The result of overaligning dataoverallocatedallocated in excessoverallotmentAn excessively large allotment or portion.overambitiousExcessively ambitious.overamplifiedExcessively amplifiedoveranxiouslyWith excessive anxiety.overapologize(intransitive) To apologize excessively.overappraisalAn appraisal that overvalues something.overarchinglyIn an overarching manner; predominantly.overassertionExcessively forceful assertion.overassertiveToo assertive.overassessingpresent participle and gerund of overassessoverattentionexcessive attention paid to somethingoverattentiveExcessively attentiveoverattribute(transitive) To attribute too much.overbalancingpresent participle and gerund of overbalanceoverbearinglyIn an overbearing manner.overbejeweledExcessively bejeweled.overblownnessThe state or quality of being overblown.overbounteousExcessively bounteous.overbreathingpresent participle and gerund of overbreatheoverbrilliantExcessively brilliant.overbroadnessThe quality of being too broad.overbumptiousExcessively bumptious.overburdeningpresent participle and gerund of overburdenovercalcifiedExcessively calcified.overcalculateTo calculate as being greater than is actually the caseovercanvassedAlternative form of over-canvassed.overcarefullyIn an overcareful manner.overcelebrateTo overindulge in activities that celebrate something; to party too hard.overchallenge(transitive) To challenge to an excessive degree.overcheapnessExcessive cheapness.overcivilizedtoo civilizedoverclockableSuitable for overclocking.overclosenessExcessive closeness.overclusteredExcessively clusteredoverclutteredExcessively clutteredovercoherenceThe condition of being overcoherentovercolouringpresent participle and gerund of overcolourovercommittal(rare) overcommitmentovercommittedHaving committed too much of one's time or resources.overcommitterOne who overcommits.overcompliantExcessively compliant.overconcernedExcessively concerned.overcondensedExcessively condensed.overconditionTo condition excessivelyoverconfidentToo confident.overconfluentExcessively confluentoverconnectedExcessively connected; having too many connections.overconsciousExcessively conscious.overconstrainTo apply excessive constraints (to).overconstruct(transitive) To place too great a construction upon; to exaggerate.overcontentedExcessively contented.overcopiouslyToo copiously.overcorrectedsimple past and past participle of overcorrectovercourteousExcessively courteous.overcredulityexcessive credulityovercredulousToo credulous; excessively gullible.overcriticismExcessive criticism.overcriticizeTo criticize too much.overcrowdedlyIn an overcrowded manner.overcultivate(transitive) To cultivate excessively.overcunninglyToo cunningly.overcuriosityExcessive curiosity.overcuriouslyWith too much curiosity; in an overcurious manner.overdecoratedsimple past and past participle of overdecorateoverdeepeningpresent participle and gerund of overdeepenoverdefensiveExcessively defensive.overdeferenceExcessive deference.overdeliciousExcessively delicious.overdelighteddelighted beyond measure; excessively delightedoverdelivererOne who overdelivers.overdemandingExcessively demanding.overdemocracyExcessive democracy.overdependentExcessively dependent.overdesperateExcessively desperate.overdetectionDetection at levels greater than are actually the caseoverdetermine(of a problem or question) To give too many constraints, so that no solution is available.overdeterrentServing as an excessive deterrent.overdevelopedsimple past and past participle of overdevelopoverdeviationA deviation from a target that results in more of something than was desired.overdiagnosedsimple past and past participle of overdiagnoseoverdiagnosis(medicine) The act or process of diagnosing something too frequently, or based on insufficient evidence, or without benefit to the patient; an instance of this act or process.overdigestionExcessive digestionoverdignifiedToo dignified.overdiligenceExcessive diligence.overdirectingpresent participle and gerund of overdirectoverdiscussedDiscussed too much; overhyped.overdispersaldispersal too widelyoverdistendedsimple past and past participle of overdistendoverdiversifyTo diversify excessively.overdiversityexcessive diversityoverdogmatismExcessive dogmatism.overdominance(genetics) The case in which a heterozygote has a higher fitness or more extreme phenotype than either homozygote.overdramaticsExcessive dramatics.overdramatise(British spelling) Alternative spelling of overdramatize.overdramatizeTo dramatize to excess; to make overdramatic.overduplicateTo duplicate excessivelyovereagernessThe quality of being overeager; excessive readiness or enthusiasm.overearnestlyIn an overearnest manner.overeducation(of a person) The state of being overeducated; the state when one feels overburdened by their education or has more education than their situation demands.overelaborateExcessively elaborate.overelegantlyToo elegantly.overelevation(medicine) excessive elevationoverelongatedsimple past and past participle of overelongateoverembellishTo embellish excessively.overembroider(transitive) To embroider excessively.overemotionalShowing too much emotion.overemphasiseNon-Oxford British English standard spelling of overemphasize.overemphasizeTo place too much emphasis on; to overstate the importance of.overenamouredAlternative form of overenamored.overencourageTo encourage too much.overenergeticToo energetic.overenergizedExcessively energizedoverengrossedoverly or excessively engrossedoverenunciate(ambitransitive) To enunciate too strongly.overestimatedsimple past and past participle of overestimateoverestimatorOne who overestimates.overexactnessQuality of being overexact.overexcitableExcessively excitableoverexcitablyIn an overexcitable manner.overexclusionExcessive exclusionoverexcretion(biology) excessive excretion of somethingoverexfoliateTo exfoliate excessively.overexoticize(transitive) To exoticize excessively; to make something appear overly exotic.overexpansionExcessive expansion, especially expansion that is not sustainableoverexpansiveToo expansive.overexpectantExcessively expectant; expecting too much.overexplainerOne who overexplains.overexploitedsimple past and past participle of overexploitoverexposuresplural of overexposureoverexpressedsimple past and past participle of overexpressoverexpresser(genetics) Something that experiences (or produces) overexpressionoverexpressorAlternative form of overexpresser.overexquisiteExcessively exquisite; too exact or careful.overextendingpresent participle and gerund of overextendoverextensionThe state or quality of being overextended; extension beyond normal, correct, or appropriate bounds or limits.overextensiveToo extensive.overextentionMisspelling of overextension.overexuberantExcessively exuberant.overfermentedsimple past and past participle of overfermentoverfertilityExcessive fertility.overfertilize(transitive) To treat (plants) with too much fertilizer.overfestoonedExcessively festooned.overflowinglySo as to overflow; very excessively or generously.overfranknessExcessive frankness.overfreightedLaden with too much freight.overfrequency(electricity) The condition where the frequency of an electrical supply rises above normal parameters.overfurnishedpretentiously or ostentatiously decorated.overgenderize(rare) To genderize too much; to unnecessarily assign masculine or feminine qualities to.overgenerallyIn an overgeneral manner.overgenialityExcessive geniality.overglamorize(transitive) To glamorize too much.overglorifiedsimple past and past participle of overglorifyovergratitudeExcessive gratitude.overgreatnessexcessive greatnessovergrossnessExcessive grossness.overgrownnessThe state of being overgrown.overguaranteeTo guarantee excessively.overhappinessexcessive happinessoverharshnessExcessive harshness.overhastinessThe quality of being overhasty.overheavinessExcessive heaviness.overhurriedlyToo hurriedly.overhydrationExcessive hydration.overimitationExcessive imitation.overimitativeExcessively imitative.overimportantExcessively important.overimposablesuperimposableoverinclusioninclusion of too much or too many within a categoryoverinclusiveToo inclusive; tending to include too much.overinductionAn excessive inductionoverindulgentTending to indulge excessively.overindulgingpresent participle and gerund of overindulgeoverinflationExcessive inflation (of vehicle tyres).overinfluence(transitive) To influence unduly or excessively.overingeniousToo ingenious.overingenuityExcessive ingenuity.overinhabitedInhabited by too large a population.overinhibited(psychology) Excessively inhibited.overinitiated(especially biochemistry) initiated excessivelyoverinsistentExcessively insistent.overinsuranceThe act of insuring something for too great a value; excessive insurance.overintenselyToo intensely.overintensityThe quality of being overintense.overinterpretTo give an overinterpretationoverintricateExcessively intricate.overjealouslyWith excessive jealousy.overjudiciousExcessively judicious.overlactationExcessive lactation.overlanguaged(nonce word) Employing too many words; verbose.overlappinglySo as to overlap.overlargenessThe quality of being overlarge; excessive size or bulk.overlaudationExcessive laudation.overlaudatoryExcessively laudatory.overlearnedlyToo learnedly.overlegislateTo create more rules than is necessary or sensible.overleisurelyExcessively leisurely.overleveraged(economics) Subject to excessive leverage (debt).overliberallyIn an overliberal manner.overliquidity(economics) Excessive liquidity.overliterallyIn an overliteral way.overlitigiousExcessively litigious.overlogicallyExcessively logically.overloquacityExcessive loquacity.overlordshipsplural of overlordshipoverlubricate(transitive) To lubricate too much.overluxuriantExcessively luxuriantoverluxuriousExcessively luxurious.overmarinatedExcessively marinated.overmasterful(rare) Overly masterful; having excessive mastery.overmasteringpresent participle and gerund of overmasterovermentionedMentioned previously in a document etc.; abovementioned.overmigrationExcessive migrationovermodernizeTo modernize excessively.overmonetizedExcessively monetized.overmortalityExcessive (more than expected) mortalityovermotivatedHaving too much motivation.overmultitudeAn large excess in numbers.overnegligentExcessively negligent.overnervouslyToo nervously.overnourishedExcessively nourished.overnutritionA form of malnutrition in which nutrients are oversupplied relative to the amounts required for normal growth, development, and metabolism.overobedienceexcessive obedienceoverobjectify(transitive) To objectify excessively.overoccupancyThe occupancy of a building by more people than it can reasonably house.overoffensiveExcessively offensive.overofficeredSupplied with too many officers.overofficiousExcessively officious or inclined to meddle.overoxidationExcessive oxidation (or to a greater than normal extent)overoxygenateTo oxygenate excessively, that is, to give (a patient) too much oxygen therapy.overparentingExcessive parenting, as by being overprotective towards one's child.overpartition(transitive) To divide into too many partitions.overpatrioticExcessively patriotic.overpenetrate(intransitive, transitive, weaponry, of a bullet or other projectile) To pass completely through a target and out the other side, potentially striking another person or object located further downrange.overperformerSomeone who overperforms.overperfusionExcessive perfusionoverpessimismExcessive pessimism.overpigmentedExcessively pigmented.overplacementPlacement over or above others.overplausibleExcessively plausible.overplenitudeExcessive plenitude.overplenteousExcessively plenteous.overplentifulExcessively plentiful.overplumpnessExcessive plumpness.overpolarizedExcessively polarizedoverpolemicalExcessively polemical.overpollutionExcessive pollution.overponderousExcessively ponderous.overpopulatedsimple past and past participle of overpopulateoverpotential(physics) The difference between the electric potential of an electrode or cell under the passage of a current and the thermodynamic value of the electrode or cell potential in the absence of electrolysis.overpowerableAble to be overpowered.overpoweredly(rare) In an overpowering manner.overprecisionThe quality of being overprecise.overpredictorOne who overpredicts.overprescribe(transitive) To prescribe (a drug) more frequently than appropriate.overpressuredsimple past and past participle of overpressureoverpressuresplural of overpressureoverproducingpresent participle and gerund of overproduceoverprogrammeAlternative form of overprogram.overprominentExcessively prominent.overpromotionExcessive promotion.overpronationThe act of pronating excessively.overpronenessThe quality of being excessively prone to something.overpronounce(transitive) To give an exaggerated pronunciation to.overprosecute(transitive) To prosecute (a crime or community) excessively.overprotectedsimple past and past participle of overprotectoverprotectorone who overprotects.overprovidentExcessively provident.overprovisionExcessive provision.overpublicityExcessive publicity.overpublicize(transitive) To publicize excessively.overpunctuateTo punctuate excessively.overqualifiedHaving too many qualifications to be deemed appropriate for a (usually unskilled) job.overquietnessExcessive quietness.overquotationexcessive quotationoverratednessThe quality of being overrated.overreactionsplural of overreactionoverreadinessThe condition of being overreadyoverrealisticExcessively realistic.overreckoningpresent participle and gerund of overreckonoverreductionExcessive reductionoverreference(transitive) To reference too much or too often.overrefreshed(humorous, euphemistic) drunkoverregulatedsimple past and past participle of overregulateoverrehearsedRehearsed too many times; made formulaic by repetition.overrejectionThe rejection of too many data values, or too much dataoverreligiousExcessively religious.overrepletionExcessive repletion.overreplicateTo replicate excessivelyoverrepresent(transitive) To represent as being higher or greater than it is.overresourcedHaving more resources than necessary or desirable.overresponderOne who overresponds.overretentionExcessive retention.overrighteousExcessively righteousoverroughnessExcessive roughness.oversaltinessThe quality of being oversalty.oversaturatedsimple past and past participle of oversaturateoverscatteredHaving something scattered over it.overscepticalAlternative form of overskeptical.oversecretionExcessive secretion.oversegmentedsimple past and past participle of oversegmentoverselectionThe selection of something more often or by more people than would be expected.overselectiveExcessively selective.oversensitiveHaving excessive sensitivity; reacting to stimuli too readily; thin-skinned.overseriouslyIn an excessively serious way.oversexednessThe quality of being oversexed.oversexualize(transitive) To sexualize excessively.overshadowingpresent participle and gerund of overshadowoversharpnessExcessive sharpness.oversizednessThe state or quality of being oversized.overskepticalExcessively skeptical.overslavishlyToo slavishly.oversocialize(intransitive) to socialize too muchoversolemnityExcessive solemnity.oversparinglyIn an oversparing manner.overspeculate(finance) To spend too much money in speculation.overspreadingpresent participle and gerund of overspreadoversqueamishExcessively squeamish.overstability(physics) A condition in which oscillation increases due to excessive feedbackoverstabilizeTo stabilize excessivelyoverstatementAn exaggeration; a statement in excess of what is reasonable.oversteadfastExcessively steadfast.overstiffnessExcessive stiffness.overstimulate(transitive) To stimulate to an excessive degree; to expose to excessive stimulation.overstrainingpresent participle and gerund of overstrainoverstrenuousExcessively strenuous.overstressfulExcessively stressful.overstretchedsimple past and past participle of overstretchoverstructureThe upper structure or superstructure.oversubscribeTo subscribe to an extent that is greater than the availability.oversubsidize(transitive) To subsidize too much.oversulfationExcessive sulfationoversustainedExcessively sustainedoversweetenedExcessively sweetened.oversweetnessQuality of being oversweet.oversynthesis(biochemistry) The excessive synthesis of a compound by an organismovertalkativeExcessively talkative.overtechnicalExcessively technical.overtenaciousExcessively tenacious.overtensenessExcessive tenseness; overtension.overtheorizedsimple past and past participle of overtheorizeoverthrowableCapable of being overthrown.overthrustingpresent participle and gerund of overthrustovertightnessExcessive tightness.overtirednessThe state of being overtired; exhaustion.overtouristedHaving too much tourism.overtreatment(medicine) Excessive treatment, often specifically medical treatmentoverunionizedExcessively unionized.overvaccinateTo vaccinate too often, or too many members of a population.overvaluationAn instance of overvaluing.overvehemenceExcessive vehemence.overventilateTo ventilate excessivelyoverventurousExcessively venturous.overweeninglyIn an overweening way; arrogantly.overweightage(India) Extra or undue weight or importance.overwhelmableCapable of being overwhelmed.overwillinglyIn an overwilling manner.overwinteringpresent participle and gerund of overwinteroverwordinessExcessive wordiness.overwriteableAlternative form of overwritable.overzealouslyIn an overzealous way; with excessive zeal.ovidepositionSynonym of oviposition.oviparousness(biology) The quality of being oviparous; oviparity.ovipositionalRelated to, or by means of, ovipositionoviviviparityQuality of being oviviviparous.oviviviparousAlternative form of ovoviviparous.ovoperoxidase(biochemistry) Any peroxidase from an egg or oocyteovoprotectionprotection of the ovary, typically from cancerovoprotectiveThat provides ovoprotectionovotesticularRelating to ovotestes.ovotransferinMisspelling of ovotransferrin.ovotriangularovoid and approximately triangularovovegetarianA vegetarian whose diet excludes both meat and dairy produce, but includes eggs.ovoviviparismThe quality of being ovoviviparous.ovoviviparityThe condition of being ovoviviparous.ovoviviparousOf or pertaining to such kind of animals such as some reptiles whose eggs hatch inside their bodyowdaciousnessPronunciation spelling of audaciousness.ownerlessnessQuality of being ownerless.oxalylglycine(organic chemistry) An amide formed from condensation of oxalic acid and the amino group of glycine; it is an inhibitor of some classes of enzymesoxamphetaminehydroxyamfetamineoxanorbornene(organic chemistry) Any of several oxygen-containing heterocycles derived from norbornene, especially those that are used to make polymersoxathiadiazol(organic chemistry, especially in combination) Any univalent radical derived from an oxathiadiazoleoxathiazinone(organic chemistry) A six-membered unsaturated heterocycle containing three carbon atoms (one of them as a carbonyl group) and one each of nitrogen, oxygen and sulfuroxathiolidine(organic chemistry) A saturated heterocycle that has three carbon atoms, one sulfur and one oxygen atomoxazaborolane(organic chemistry) oxazaborolidineoxazolidinone(organic chemistry) Any of a class of heterocyclic ketones, derived from oxazolidine, useful in organic synthesis.oxcarbazepine(pharmacology) An anticonvulsant and mood-stabilizing drug used primarily in the treatment of epilepsy, a structural derivative of carbamazepine.oxibuprocaineMisspelling of oxybuprocaine.oxidizabilityThe condition of being oxidizableoxidoreductin(biochemistry) Any enzyme that catalyses an oxidoreduction (typically of disulphide bonds in proteins)oxidosqualene(organic chemistry) An epoxide derived from squaleneoxitriptylineA tricyclic anticonvulsant.oxocarboxylic(organic chemistry) Relating to a carboxylic acid in which a methylene group has been replaced by a carbonyl groupoxocyclohexyl(organic chemistry, especially in combination) A univalent radical derived from cyclohexanoneoxodegradableThat degrades in the presence of oxygen.oxoderivative(organic chemistry) A derivative formally made by replacing a methylene group with a carbonyl oneoxolipidomicsoxylipidomicsoxomaritidine(organic chemistry) An alkaloid (1S,10R)-4,5-dimethoxy-9-azatetracyclo[7.5.2.01,10.02,7]hexadeca-2,4,6,13-tetraen-12-oneoxonorborneneAlternative form of oxanorbornene.oxopentanoate(organic chemistry) Any derivative of a pentanoate in which a methylene group is replaced by a carbonyl group; a salt or ester of an oxopentanoic acidoxopiperazine(organic chemistry) A heterocyclic ketone formed by replacing a methylene group of piperazine with a carbonyl groupoxoprolinuria(pathology) The presence of oxoproline in the urine, especially as a result of glutathione synthetase deficiencyoxopropanoate(chemistry) A salt or ester of oxopropanoic acid.oxpheneridine(pharmacology) A 4-phenylpiperidine derivative related to the opioid analgesic drug pethidine.oxtriphyllinecholine theophyllinate, an expectorant and bronchodilator derived from xanthineoxybarbituricSynonym of barbituric.oxybismuthide(inorganic chemistry) Any compound that is a mixed oxide and bismuthideoxybuprocaine(pharmacology) A local anesthetic, used especially in ophthalmology and otolaryngology.oxycinchophen(organic chemistry, pharmacology) An antirheumatic drug.oxycolchicineAn epoxide of colchicineoxyconformity(biology, physiology) The change in rate of oxygen consumption in the presence of varying oxygen levels in the environment.oxyderivative(chemistry) A derivative compound obtained by reaction with oxygen.oxydimorphineSynonym of pseudomorphine.oxygenizement(archaic) oxidationoxyhemocyanin(biochemistry) The blue pigment that is an oxygenated form of hemocyaninoxyhemoglobin(American spelling) Alternative form of oxyhaemoglobin.oxyiodination(organic chemistry) Simultaneous oxygenation and iodinationoxylipidomics(biochemistry) The lipidomics of oxylipidsoxymetazoline(medicine, pharmacology) A sympathomimetic drug with vasoconstrictive activity that is used in the form of its hydrochloride C₁₆H₂₄N₂O·HCl chiefly as a topical nasal decongestant, developed from xylometazoline.oxymoronicityThe quality of being oxymoronic.oxyneolignane(organic chemistry) Any derivative of a neolignane in which the two propylbenzene residues are joined indirectly by an oxygen atomoxyntomodulin(biochemistry) A polypeptide hormone found to suppress appetite.oxypeucedanin(organic chemistry) A coumarin found in the plant Angelica archangelica.oxyprenylated(organic chemistry) prenylated via an ether linkageoxypyrimidine(organic chemistry) A phenol or ether derived from a pyrimidineoxyregulation(physiology) The regulation of oxygen in animals and plantsoxystelmosideA particular steroid glycoside.oxytocinergic(physiology) Containing, or releasing oxytocinoystercatcherAny of several black or pied coastal wading birds in the genus Haematopus that have a long red or orange bill and feed on shellfish.oysterishnessQuality of being oysterish.ozonification(chemistry) ozonization
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