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pachydermialAlternative form of pachydermal.pachydictyol(organic chemistry) A bicyclic tetraterpenoid alcohol present in brown algae of the genus Dictyota.paedagogical(chiefly British spelling) Alternative spelling of pedagogical.paedologicalAlternative form of pedological.paidologicalAlternative form of pedological.palaeofaecalAlternative form of paleofecal.palaeofaunalRelated to palaeofaunapalaeofloralRelating to palaeoflorapalatodental(anatomy) Relating to the palate and the teethpaleochannel(geology) A deposit of sediment filling the course of an ancient river.paleofluvialRelating to ancient riverspaleoglacialRelated to a paleoglacier.paleoliberalRelating to paleoliberalism.paleologicalRelating to paleologypaleothermalRelating to palaeothermometry.pallidofugal(anatomy) Leading out from the globus palliduspalmitoleoyl(organic chemistry, especially in combination) The univalent radical derived from palmitoleic acid by loss of the hydroxy grouppalynofloralRelating to palynoflorapalynofossil(botany) A fossil spore or pollen grainpamprodactylExhibiting pamprodactyly.panbacterialRelating to all (or most) types of bacteriapandeisticalAlternative form of pandeisticpandialectalAcross all dialects.panspiritualRelating to, or encompassing, all kinds of spirituality.pantologicalOf or pertaining to pantology.pantomimical(now rare) Expressed or carried out using mime or mimicry.papillorenal(anatomy) Relating to renal papillae.paraarterialSynonym of paravascular.paraboloidalHaving a paraboloid shape.parabrachial(anatomy) Of or relating to a horseshoe-shaped strip of grey matter in the brain, comprising the Kölliker-Fuse nucleus, the lateral parabrachial nucleus, and the medial parabrachial nucleus.paracalcitolAlternative form of paricalcitol.paracallosalBeside or beyond the corpus callosumparacerebralThroughout the brainparacervical(anatomy) Adjacent to the cervixparaclinicalOf or relating to techniques or findings that are not purely clinical, but may be related, such as those of pathology or radiology.paracolonialRelating to settler colonialism.paracorticalRelating to the paracortex.paracriminalAssociated with or profiting from crime without actually being illegal.paradisaicalOf or relating to paradise (or heaven).paradisiacalOf or resembling paradise.paraenetical(now rare) Giving advice; advisory, hortatory.parafissuralAcross or through a fissureparaganglialRelating to the paraganglionparahormonalOf or relating to a parahormone.parajudicial(law) Of or relating to non-judicial personnel who assist judges in carrying out their function, such as law clerks.parameniscal(anatomy) Across or through the meniscus (of the knee)paraneuronalBesides a neuronparaphragmalRelating to the paraphragm.paraphysicalRelating to paraphysics.parapoxviralRelating to parapoxviruses.parapropamolA non-narcotic analgesic drug.parasaggitalMisspelling of parasagittal.parasagittalSituated alongside of or adjacent to a sagittal location or a sagittal plane.parasitoidalOf or pertaining to parasitoids.parasplenial(anatomy) Across or beyond the spleniumparastriatalAbove or beyond the corpus striatumparasuicidalInclined towards parasuicide.paratacticalSynonym of paratactic.paraterminalOver or above a terminus.paratracheal(anatomy) Adjacent to the tracheaparatropicalBeyond the tropics (away from the equator)paraurethralLying alongside the urethraparavariceal(anatomy, medicine) Adjacent to or near a varix; usually with reference to an esophageal varix.paravisceral(anatomy) Beside the visceraparechoviralRelating to the parechovirusesparicalcitol(pharmacology) An analog of calcitriol (the active form of vitamin D) that is used for the prevention and treatment of secondary hyperparathyroidism.parliamentalMisspelling of parliamentary.paroccipital(anatomy) Situated near or beside the occipital condyle or the occipital bone; paramastoid; applied especially to a process of the skull in some animals.paronomasialSynonym of paronomasic.parricidiallAlternative form of parricidial.partitiviralRelating to the partitivirusesparumbilical(anatomy) Near, or connected to the navel (predominantly referring the small veins which, in human beings, connect the portal vein with the epigastric veins in the front wall of the abdomen).pataphysicalRelating to pataphysics.pathogenicalAlternative form of pathogenic.pathological(medicine) Pertaining to pathology.patriarchialCharacteristic of or pertaining to a patriarchy.patrilateral(anthropology) From kin 'on the father's side' (related to the father).patrological(religion) Relating to patrologypedometricalAlternative form of pedometric.pelvifemoral(anatomy) Relating to the pelvis and femur.pentadecanal(organic chemistry) The aliphatic aldehyde that has 15 carbon atomspentadecanol(organic chemistry) A saturated aliphatic alcohol that has fifteen carbon atoms, but especially 1-pentadecanolpentadecimal(computing, mathematics) Based on the number 15; using the digits 0, 1, 2, 3, 4, 5, 6, 7, 8, 9, A, B, C, D and E.pentagalloyl(organic chemistry, in combination) Five galloyl groups in a compoundpentalateral(geometry) A decagon whose opposite sides are parallel.pentalingualWritten in or otherwise expressed through five languages.pentateuchalOf or pertaining to the Pentateuch, also known as the Torah.perceptionalOf, pertaining to, or stimulated by perceptionpercussionalInvolving or relating to percussion; percussive.perfectionalOf or relating to perfection; characterized by perfection.periadnexialMisspelling of periadnexal.periarterial(anatomy) Around the artery.periaxonemalSurrounding an axonemepericallosal(anatomy) Of, relating to, or occurring in tissue surrounding the corpus callosum.pericementalAround the cement of a tooth.pericerebralAround the cerebrum.perichaetial(botany) Of or relating to the perichaeth.perichondralSurrounding cartilagepericortical(anatomy) Surrounding a cortexperiduodenalAround the duodenum.perifornicalAround the fornix.perigonadialAround the gonads.perilesionalAround a lesion.perimarginalAround a margin.perimetricalof, relating to or having a perimeterperineuronalSurrounding a neuronperiondontalMisspelling of periodontal.periostracalOf or pertaining to periostracum.perioxisomalMisspelling of peroxisomal.peripentonalThat surrounds a pentonperipersonalAround the person; near a person's body.periprandialAround (before and/or after) a mealperipubertalAround the time of puberty.periscopicalSynonym of periscopic.periseasonalRelating to each side of a seasonperiskeletal(anatomy) Around the skeleton.peristriatal(anatomy) Surrounding the corpus striatum.perisurgicalAround the time of surgery.perisynovialAround a synovium.perithallialSurrounding a thallusperitracheal(anatomy) Surrounding the tracheae.peritrigonal(anatomy) Surrounding a trigoneperitumouralAlternative form of peritumoral.periureteralAround the ureter.periurethral(anatomy) Surrounding the urethraperivaricealSurrounding a varixperivisceral(anatomy) Around the viscera.perorationalRelating to peroration.peroxyacetyl(organic chemistry, especially in combination) The univalent radical derived from peroxyacetic acidperspectivalOf or pertaining to perspective.pestilentialOf or relating to pestilence or plague.pestologicalRelating to pestology.petrichloralA sedative and hypnotic drug related to chloral hydrate.petrologicalOf or pertaining to petrology, the study of rock formation and compositionpetromyzonol(organic chemistry) The sterol 3α,7α,12α,24-tetrahydroxy-5α-cholane that is a spawning pheromone in lampreysphagedenicalAlternative form of phagedaenic.phagocyticalSynonym of phagocytic.phantasmicalAlternative form of phantasmic.phantasticalArchaic spelling of fantastical.phellodermalOf or pertaining to phelloderm.phenocrystalSynonym of phenocryst.phenologicalOf or pertaining to phenologyphenomenicalOf or pertaining to phenomena.phenotypicalOf or pertaining to a phenotype.phenylacetyl(organic chemistry, especially in combination) Any phenyl derivative of an acetyl groupphenylalanyl(organic chemistry, especially in combination) The univalent radical derived from phenylalaninephenylmethyl(organic chemistry) Benzyl: the cyclic radical, ion or functional group having the formula C₆H₅CH₂phenylpropyl(organic chemistry, especially in combination) Any phenyl derivative of a propyl radicalphenyramidolAlternative form of fenyramidol.phetharbitalA barbiturate derivative with anticonvulsant effects and relatively weak sedative action.philatelicalRelating to philately.philodoxicalInterested in opinions or beliefs, rather than facts.philologicalOf or pertaining to the history of literature and words.phlogisticalAlternative form of phlogistic.phonologicalOf or relating to phonology.phonotopicalIn which each separate position is associated with a different soundphonotypicalAlternative form of phonotypic.phosphatidyl(organic chemistry) A radical derived from a phosphatidephosphoranyl(organic chemistry) Any organophosphorus radical of the form R₄P.phosphorical(obsolete) Producing light; luminous, glittering.phosphothiol(inorganic chemistry) The compound S=P(OH)₃photocontrolThe control of a system using lightphotojournalA journal in the form of a collection of photographs that tell a story.photologicalRelating to photology.photomedicalRelating to photomedicine.photoneutral(biology, physics) Unaffected by the action of lightphotothermal(physics) Involving the production of heat by photoexcitation.phragmosomalOf or relating to a phragmosome.phrenocostal(anatomy) Relating to the ribs and diaphragm.phthalimidyl(organic chemistry, especially in combination) A radical derived from phthalimide.phycologicalOf or pertaining to the scientific study of algae.phylloquinol(organic chemistry) A reduced form of phylloquinonephysiomentalPertaining to both the body and the mind.phytochorialOf or relating to a phytochorion.phytologicalof or relating to phytologyphytomedicalRelating to phytomedicine.phytoplasmalRelating to phytoplasmaspicornaviralOf or pertaining to picornaviruses.piezocrystal(physics) A piezoelectric crystal.piezoopticalSynonym of piezooptic.pinacodermalRelating to or composed of pinacoderms.pipradimadol(pharmacology) An antiemetic drug.pitchforkfulThe amount that a pitchfork holds.planetesimal(astronomy) Any of many small, solid astronomical objects that orbit a star and form protoplanets through mutual gravitational attraction.planoconicalPlane or flat on one side, and conical on the other.plantodistalplantar and distalplantomedial(anatomy) plantar and medialplasmalemmalRelating to the plasmalemmaplasmodesmalRelating to plasmodesmataplastoquinol(biochemistry) A compound derived from plastoquinone during photosynthesis.platitudinalCharacterized by banality or triteness.platyrostralHaving a flat, wide beakplayersexual(video games, of an NPC) Attracted to the player character, especially without regard to gender, race, etc.pleiochasialRelating to a pleiochasium.pleniglacial(geology) Full of glaciation.pleurostomalRelating to pleurostomapluractionalExhibiting or relating to pluractionality.pluricentralPluricentric; having more than one centre.plurilateralInvolving several parties.plurilingualOf or pertaining to several languages.pluriliteral(archaic, linguistics) Consisting of more than three letters.plurinominal(politics) Nominating or electing more than one representative at once.pneumatocoelMisspelling of pneumatocele.pneumococcalOf, pertaining to or caused by a pneumococcus bacteriumpodzoluvisol(soil science) Synonym of albeluvisol.poetastricalBeing or relating to unskilled poetry.poetologicalRelating to poetology.polyarchicalSynonym of polyarchic.polycandidalRelating to many types of candidal yeastspolycatechol(organic chemistry) A polymeric derivative of catecholpolyclinicalPertaining to a polyclinic.polyculturalRelating to many interacting cultures.polycyclicalInvolving more than one cycle.polydnaviralRelating to polydnaviruses.polyglutamyl(organic chemistry, in combination) Many glutamyl groups in a compoundpolyglycerol(countable, organic chemistry) Any of several polymeric condensation products of glycerolpolyhedricalAlternative form of polyhedral.polyhormonalInvolving or relating to more than one hormone.polyneuronalRelating to many neuronspolyomaviralRelating to polyomaviruses.polypeptidylRelating to or composed of polypeptides.polypersonal(grammar) Involving more than one person.polysurgical(medicine) Of or pertaining to polysurgery.polyvisceral(anatomy) Relating to, or affecting many of the viscerapopulationalOf or pertaining to populationpornological(of language) Describing the sex act and sexual perversions.porringerfulThe amount that a porringer will hold.porritoxinolA phytotoxin, 6-(2',3'-dihydroxy-3'-methylbutoxy)-4-methoxy-5-methylphthalide, present in the fungus Alternaria porripossessionalRelating to possession.possessorialSynonym of possessory.postantennalBehind the antenna.postapprovalAfter approval, especially of a pharmaceutical drug.postbiblicalAfter the publication of the Bible.postbifurcalAlternative form of postbifurcation.postbrachial(anatomy) posterior to the armpostcardinal(anatomy) posterior to the cardinal veinpostcerebral(anatomy) posterior cerebralpostcervicalBeyond the cervix.postchalazal(botany) Beyond the chalaza (in the outer integument)postcolonialFollowing the end of colonial rule.postcriticalFollowing criticism; after all criticism has endedpostdecretalAfter the issuing of a decree.postdiluvialAfter the Biblical Flood.postdoctoralAfter receiving a doctorate; especially of academic research or study beyond the level of a doctoral degree.postepiduralAfter the administration of an epidural.posterobasalposterior and basalposteromesalposteromedialpostfamilialAfter the decline of the family as a social unit.postflexural(anatomy) Behind a flexurepostfusionalFollowing fusionpostgerminalPosterior to the germinal centreposthospitalAfter a period spent in hospital.postimperialAfter the period of an empire.postlesionalAfter a lesion.postmalarialAfter malaria.postmarginalBehind a marginpostmaterialHaving gone beyond materialism; no longer concerned with material things.postmedievalAfter the Middle Ages.postmythicalAfter the time of mythology.postnationalPertaining to a time or mindset in which the identity of a nation is no longer important.postneonatalDescribing the period following the neonatal period; typically between a month and a year after birthpostparietalLocated behind a parietal structure.postprandialAfter a meal, especially after dinner.postpubertalAfter puberty.postremedialFollowing remedial measures.postscriptalBeing or relating to a postscript.postseizuralAfter a seizure.postsplenial(anatomy) posterior to the splenial bonepostsuicidalNo longer suicidal.postsurgicalRelating to the period following surgery.posttemporalA posttemporal bone.posttracheal(anatomy) Posterior to the trachea.postvaccinalAfter vaccination.postvenerealFollowing venereal disease.postvertical(anatomy) posterior to a vertexpourcontrellAlternative form of pourcuttlepraeprandialAlternative form of preprandial.preabdominalRelating to the preabdomenpreacquittalBefore acquittal.preadverbial(grammar) Before an adverb.preanaphoral(Christianity) Before the anaphora.prebaptismalBefore baptism.prebetrothalBefore betrothal.prebranchialanterior of the gillsprebronchial(anatomy) Situated in front of the bronchusprecanonicalPrior to the development of a religious canon.precautionalArchaic form of precautionary.precedential(law) Having the force of precedent.precentorialOf or relating to a precentor.preceptorialPertaining to a preceptor.precessionalOf or pertaining to precession.preclassicalOf or pertaining to a period before a classical period.precoccygeal(anatomy) In front of the coccyx.precoitionalPrior to sexual intercourse.precolostralPrior to receiving colostrumprecommittalBefore committal (e.g. to a hospital).preconnubialBefore marriage.precursorialActing as or being a precursor.prediapausalPrior to diapause.prediastemalanterior to a diastemapredicatival(grammar) Of or pertaining to the predicate of a sentence.predictionalRelating to prediction; prophetic; prognostic.predismissalBefore dismissal.predispersalPrior to dispersalpreelectoralBefore an election.preemptionalOf or relating to preemption; preemptive.prefectorialOf or pertaining to a prefect.preferentialOf or relating to the showing or giving of preference.pregnanediol(organic chemistry) A steroid formed by the metabolism of progesterone; it is excreted in the urine of pregnant women.pregonopodalIn front of a gonopodprehensorialBeing or relating to a prehensor.prehesternal(grammar) Relating to past time earlier than yesterday.prehodiernal(grammar) Relating to past time earlier than today.preinauguralPreceding or in preparation for an inaugurationprelaryngeal(anatomy) anterior to the larynxprelysosomal(biochemistry) Prior to the action of lysosomal enzymespremediaevalAlternative form of premedieval.premenarchalAlternative form of premenarcheal.premenstrualOccurring in the time period during the menstrual cycle leading up to the beginning of menstruation.premunicipalBefore the establishment of a municipality.premyofibril(biology) A structure formed during sarcomerogenesis that develops into a nascent myofibril.preoccipital(anatomy) Situated in front of the occipital region or occipital lobe.preparturialPrior to parturitionpreplacental(anatomy) anterior to the placentaprepoliticalBefore the development or introduction of politics.prepotential(biology) The depolarization of a cell membrane between action potentialsprerehearsalBefore a dramatic rehearsal.preretrievalBefore retrieval.preribosomalPrior to the development of a ribosomeprerogativalOf or relating to a prerogative.presbyterialPresbyterian.presectorialRelating to a presectorpresessionalBefore a session, often an academic term.presidentialPertaining to a president or presidency.presteroidalIn the era before steroids were available.presubgenual(anatomy) anterior to the subgenual region of the brainpresyncytialPrior to the formation of a syncytiumpretechnical(education) Leading up to a technical course.pretensionalOf or relating to pretense or pretension; pretended.preternormalBeyond what is normal; supernatural; paranormal.preventorial(historical) Being or relating to a preventorium.prevertebral(anatomy) Situated immediately in front of, or on the ventral side, of the vertebral columnprimogenitalRelating to primogeniture.prismatoidalHaving the shape of a prismatoid.proacrosomalThat develops into an acrosomal granule, vesicle etcproboscidial(zoology) proboscidateprocathedralA church used in place of a cathedral.processionalOf, pertaining to, or used during a procession, particularly at the start of a religious ceremony or wedding.produceorial(film, theater) Of or pertaining to a producer; concerned with productionproductionalof or pertaining to productionproembryonalAlternative form of proembryonic.profectionalOf or relating to profection.professionalshowing the skill, conduct, or standards expected in a professionprofessorialOf, relating to, or characteristic of a professor or professors, or of a professorship or professorships.prognosticalAlternative form of prognostic.projectionalOf or relating to projection.proliposomalRelating to proliposomes.promesonotal(anatomy) Relating to the promesonotumpromicrobialThat encourages the growth of microbespromontorialRelating to a promontorypropacetamolA prodrug form of paracetamol.propanethial(organic chemistry) The thial CH₃-CH₂-CH=SpropetandrolAn anabolic steroid.propiconazolAlternative form of propiconazole.propionitrilArchaic form of propionitrile.proportionalOf a typeface, having characters with natural (non-uniform) width (in contrast to monospace typefaces).proprochiral(chemistry) Describing an achiral compound that can be converted to a chiral one in two stepspropterygialRelating to the propterygium.prosectorialOf or relating to a prosector.proselyticalAlternative form of proselytic.prosenchymalRelating to the prosenchyma.protectionalOf or relating to protection.protectorialAlternative form of protectoral.protentionalOf or pertaining to protentionprothipendylAn antipsychotic drug.protoconchalOf or pertaining to a protoconch.protoethicalRelating to protoethics.protolactealDescribing the secretion of the mammary glands of primitive mammalsprotoliberalSimilar to liberalism, but before its establishment.protolingualOf or relating to proto-language.protologicalOf or relating to protology.protonematalRelating to protonemata.protonymphalRelating to a protonymphprotoplasmal(cytology) Of or relating to protoplasm.prototherial(of mammals) Belonging to the taxonomic subclass Prototheria.prototrochalRelating to a prototrochprototypicalConstituting or representing an original type of something that others are modelled on or derived from.protreptical(obsolete) Adapted to persuade; hortatory; persuasive.protrusionalRelating to, or having the form of a protrusionprovenantialPertaining to the provenance of something.providentialPertaining to divine providence.provostorialPertaining to a provost.proximobasalproximal and basalpseudoaerialApparently aerialpseudoannualHaving the appearance of something that occurs annually but not following a strictly annual pattern.pseudocerealAny plant that, although not belonging to the grass family, produces seeds that are used to make flour.pseudochiralRelating to, or exhibiting pseudochiralitypseudodentalApparently, but not actually, dental.pseudofaecalOf or relating to pseudofaeces.pseudoformalAttempting to be formal, but not actually doing so.pseudofossilAny object, marking or impression that resembles a fossil but whose origin is non-biological.pseudoglobalNot quite global, but pertaining to almost everything.pseudohaemalRelating to the vascular system of annelids.pseudohyphalRelating to pseudohyphaepseudonormalApparently or deceptively, but not actually, normalpseudopodialOf or relating to a pseudopod or to pseudopodia.pseudoscutal(anatomy) Of or relating to a pseudoscutum.pseudosexualApparently but not actually sexual.pseudosocialApparently, but not actually, social.pseudoverbal(linguistics) Having some of the characteristics of a verb, though not in fact a verb.pseudovulvalRelating to a pseudovulvapsychomentalBoth psychological and mentalpsychosexualOf or relating to the psychological aspect or aspects of sexuality.psychosocial(of behaviour) Having both psychological and social aspects.psychovisualRelating to the psychology of vision.pteropleural(entomology) Related to the pteropleuron.pterostigmalRelating to a pterostigmapubocervical(anatomy) Relating to the pubis and the cervixpuboperineal(anatomy) Relating to the pubis and the perineumpubourethral(anatomy) Relating to the pubis and urethra.pubovisceralRelating to, or connecting, the pubis and the viscerapulsologicalRelating to pulsology.pumpernickelA German sourdough bread made from rye.punishmental(rare) punitivepyridinediyl(organic chemistry, especially in combination) Any diradical derived from pyridinepyridinitrilA particular fungicide.pyrimethanilA particular pesticide.pyritohedralHaving the shape of pyrites.pyrocatechol(organic chemistry) A dihydric phenol, benzene-1,2-diol, present in some tars.pyrochemical(chemistry) Of, related to, or produced by chemical reactions at elevated temperatures.pyroculturalOf or relating to pyroculture.pyroglutamyl(organic chemistry, especially in combination) The univalent radical derived from pyroglutamic acidpyromaniacalOf or relating to pyromania.pyrosulfuryl(inorganic chemistry, in combination) A divalent group -S₂O₅-pyrrolidinyl(organic chemistry, especially in combination) A radical derived from pyrrolidinepyrrolidonyl(organic chemistry, especially in combination) A univalent radical derived from pyrrolidone