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paedophilophile(humorous) A person who is sexually attracted to paedophiles.palaeolandscapeAlternative form of paleolandscape.palaeolongitudeBritish standard spelling of paleolongitude.palaeoshoreline(geology) A shoreline that existed in the geologic past.palaeotemperateAlternative form of paleotemperate.paleoatmosphereAn atmosphere, particularly that of Earth, at some unspecified time in the geological past.paleocoordinate(geology) A geographical coordinate at a past time accounting for the effects of plate tectonics, etc.paleocribellateDescribing extinct cribellate spiderpaleoearthquakeAn earthquake that occurred in the geologic past.paleolacustrineRelating to ancient lakespaleovertebrateAny of the ancient vertebrates (typically a dinosaur)palladoarsenide(mineralogy) A monoclinic-prismatic steel gray mineral containing arsenic and palladium.pallophotophone(historical, photography) A device that records sounds on photographic film.palmitostearateAny salt or ester of palmitostearic acid.palmitoylatable(biochemistry) That can be palmitoylatedpancreatosphereA spherical organoid composed of pancreatic stem cellsparaconformable(geology) Exhibiting paraconformity.paracrystallineOf or pertaining to a paracrystalparageosyncline(geology) A geosyncline within or adjacent to a craton and usually less elongated, shallower, and less persistent than an orthogeosyncline.parallellizableMisspelling of parallelizable.parameterisableNon-Oxford British English form of parameterizable.parameterizableAlternative form of parametrizable.paramontroseite(mineralogy) An orthorhombic-dipyramidal black mineral containing oxygen and vanadium.paranaphthalene(chemistry, archaic) anthraceneparasynchronizeTo make parasynchronous.parefuningosideA particular steroid glycoside.parliamentarize(transitive) To make parliamentary.pathoadaptativeAlternative form of pathoadaptive.pathopreventive(rare, pathology) That prevents disease.paulscherrerite(mineralogy) A monoclinic schoepite mineral with chemical formula UO₂(OH)₂.peliosanthosideA particular steroid glycoside.penimepicycline(pharmacology) An antibiotic, the phenoxymethyl penicillin salt of pipacycline.pentaantimonide(inorganic chemistry) Any antimonide containing five atoms of antimony per molecule, Sb₅.pentacarpellate(botany) Having five carpelspentacoordinate(chemistry) Having a coordination number of fivepentanucleotide(genetics) A codon containing five nucleotides.pentapyrimidineA sequence of five pyrimidines in a nucleic acidpentaquadrupoleFive quadrupoles (typically in a mass spectrometer)pentaresistanceThe condition of being pentaresistantpentasaccharide(biochemistry) Any oligosaccharide having five sugar residuespentatricontanepentatriacontanepentofuranoside(organic chemistry) The furanoside form of a pentosepeptidoliposomeA liposome coated with a peptide layerpeptidylglycineA terminal glycine residue of a peptideperamorphocline(biology) A sequence of increasingly more peramorphic speciesperfectissimate(history) the office of a perfectissimusperfluoroalkaneA type of hydrocarbon with hydrogen replaced by fluorine.perfluorobutaneA colourless gaseous fluorocarbon, C₄F₁₀, used in fire extinguishers and in ultrasound imagingperfluorohexane(organic chemistry) The saturated aliphatic fluorocarbon C₆F₁₄perfluorooctane(organic chemistry) A derivative of octane, C₈F₁₈, in which every hydrogen atom has been replaced by those of fluorineperfluorosilaneAny perfluoro derivative of a silaneperiarchaeopyleAlternative form of periarcheopyle.perichondrocyteA chondrocyte of the perichondriumperilenequinoneMisspelling of perylenequinone.peripenultimateSynonym of antepenultimate.perivasculatureperivascular tissuepermeabilizableThat can be made permeable.peroxidisulfateMisspelling of peroxydisulfate.peroxocarbonate(inorganic chemistry) Alternative form of peroxycarbonate.peroxodisulfateAlternative form of peroxydisulfate.peroxophosphate(inorganic chemistry) The anion PO₅³⁻, derived from peroxophosphoric acid, which is a powerful oxidizing agent.peroxycarbonate(inorganic chemistry) The anion O-CO-O-O²⁻; any salt containing this anionperoxydisulfate(inorganic chemistry) A persulfate containing two sulfate moietiesperoxymolybdate(inorganic chemistry) The oxyanion Mo₄O₁₂(O₂)₂⁴⁻; any salt containing this anionpersonalitylikeResembling or characteristic of a personality.personalitywiseIn terms of personality.personificativeThat personifies; anthropomorphic.perylenediimide(organic chemistry) A diimide derived from a perylene that is a rylene dyeperylenequinone(organic chemistry) Any of a group of perylene quinones characterized by a pentacyclic conjugated chromophorepestalotiollideAny of a series of analogs of dibenzodioxocinones, which are inhibitors of cholesterol ester transfer proteins, produced by fungi of the genus Pestalotiopsispeterbaylissite(mineralogy) An orthorhombic-dipyramidal mineral containing carbon, hydrogen, mercury, and oxygen.petewilliamsite(mineralogy) A monoclinic-sphenoidal mineral containing arsenic, calcium, cobalt, copper, iron, nickel, and oxygen.phaeochromocyte(cytology) A phaeochrome cellphaeomelanosomeAlternative spelling of pheomelanosome.phagodeterrence(biology) The deterrence of an organism from eating something.phenakistiscopeAlternative form of phenakistoscope.phenakistoscopeAn early animation device consisting of a disc or drum which rotated, showing successive images through slits, often via a mirror, thus producing the illusion of motion.phenazopyridineA chemical used as an analgesic for the urinary tract.phendimetrazineA particular drug used for weight loss, metabolized by the body into phenmetrazine.phenglutarimideAn anticholinergic used as an antiparkinsonian agent.phenylacetamideSynonym of acetanilide.phenylacetylene(organic chemistry) An alkyne hydrocarbon containing a phenyl group, sometimes used as an analogue for acetylene in scientific research.phenylalaninase(biochemistry) An enzyme that catalyzes the oxidation of phenylalanine to tyrosine.phenyldiazirine(organic chemistry) A chemical formed by linking a phenyl group to a diazirine ring.phenylephedrinePhenylephrine.phenylhydrazine(organic chemistry) The phenyl derivative of hydrazine C₆H₅-NH-NH₂; it is used in the synthesis of indoles, and in the analysis of sugars etc.phenylhydrazone(organic chemistry) The hydrazone derivative of benzaldehyde; it is used in the analysis of sugars.phenylsilatraneA convulsant that has been used as a rodenticide.phenylsuccinate(organic chemistry) Any phenyl derivative of a succinate groupphenylsulfamideAny of a group of related fungicides.phenylthiophene(organic chemistry) Any phenyl derivative of thiophenephilosophizableCapable of being discussed in a philosophical context.phoenicochroite(mineralogy) A form of lead chromate with striking orange-red crystals.phoenicopterone(organic chemistry) A particular carotenoid.phosphanylidene(chemistry) any substituted phosphorus analogue of carbenes having general formula R-P:phosphinolizine(organic chemistry) A heterocycle formally derived from quinolizine by replacing the nitrogen atom with phosphorus.phosphoablative(biochemistry) That removes (or deactivates) the phosphate groups of a phosphorylated proteinphosphoactivate(biochemistry) To activate by means of a phosphatephosphoarginine(biochemistry) A particular phosphagen.phosphoceramide(organic chemistry) Any phosphosphingolipid derived from a ceramidephosphocreatine(biochemistry) A phosphorylated derivative of creatine that is used in muscles to store chemical energyphosphoesterase(biochemistry) Any enzyme that catalyses the hydrolysis of a phosphate enzyme.phosphofructosefructose phosphatephosphoketolase(biochemistry) A particular aldehyde-lyase enzyme.phospholipidaseAlternative form of phospholipase.phospholipidome(biochemistry) The set of all phospholipids in a cell or organismphospholiposomeAny liposome that has a phospholipid membranephosphonamidite(organic chemistry) Any amidite derived from a phosphatephosphopanteineMisspelling of phosphopantetheine.phosphophyllite(mineralogy) A rare bluish-green hydrated zinc phosphate mineral.phosphoprotease(biochemistry) Any protease that cleaves phosphoproteinsphosphoproteome(biochemistry) A proteome of phosphoproteinsphosphopyruvatephosphoenolpyruvatephosphoramidaseAlternative form of phosphoamidase.phosphoramidate(organic chemistry) A phosphate that has two of its OH groups substituted by NR2 groups to give a species with the general formula O=P(OH)(NH2).phosphoramidite(organic chemistry) Any amidite formally derived from a phosphite; they are used in the synthesis of nucleic acids etcphosphoregulateTo undergo phosphoregulationphosphorescenceThe emission of light without any perceptible heat; the quality of being phosphorescent.phosphorgummitea form of gummite containing phosphorusphosphorthioateAlternative form of phosphorothioate.phosphorylativeRelating to phosphorylation.phosphosiderite(mineralogy) A monoclinic-prismatic mineral containing hydrogen, iron, oxygen, and phosphorus.phosphosilicate(inorganic chemistry) A mixed salt containing phosphate and silicatephosphosulphateAlternative spelling of phosphosulfate.phosphotyrosine(biochemistry) A phosphorylated derivative of tyrosine that is active in signal transduction and regulation of enzymatic activityphosphuranylite(mineralogy) An orthorhombic-dipyramidal mineral containing calcium, hydrogen, oxygen, phosphorus, potassium, and uranium.photoabsorbance(physics) The effect of (varying intensities of) light on the absorbance of a materialphotoassimilateTo form a compound in this way.photobleachableAble to be photobleachedphotochromotypeA coloured print made by photomechanical means.photoconductiveof, relating to, or characterized by photoconductivityphotoconvective(physics) Relating to photoconvectionphotoconvulsiveRelating to, or causing photoconvulsionphotodegradableCapable of being chemically broken down as the result of a photochemical reactionphotodepolarizeTo cause or to undergo photodepolarization.photoderivative(organic chemistry) Any derivative of a compound produced by a photochemical reactionphotodifference(crystallography) Used attributively to describe a map of the electron density differences between parts of a sample that had been irradiatedphotodisruptiveThat causes photodisruptionphotodissociateTo cause or to undergo photodissociation.photohardenableAble to be photohardened.photoimmobilizeTo immobilize (a surface) by means of lightphotoinactivateTo cause, or to undergo photoinactivationphotoinhibitiveRelating to, or causing photoinhibitionphotomacroscopeA macroscope equipped with a cameraphotometabolite(biochemistry) Any metabolite produced by the action of light (typically in the skin)photomicroscopeAn instrument (microscope plus camera) that is used for making photomicrographs.photooxidizable(chemistry) photochemically oxidizablephotoperceptiveRelating to photoperceptionphotopolymeriseAlternative form of photopolymerize.photopolymerizeTo subject to photopolymerization.photopreference(biology) preference for a particular level or colour of lightphotoprotectiveOf or pertaining to photoprotectionphotoreactivateTo cause or to undergo photoreactivation.photorefractive(physics) of or relating to a change in refractive index in the presence of lightphotoregenerateTo regenerate photochemicallyphotoregulativeRelating to, or causing photoregulationphotoreleasablereleasable by the action of lightphotoresistance(physics) resistance of a material that varies with the amount of incident lightphotoresponsiveThat responds to lightphotoreversible(physical chemistry) Describing any compound or system that can exist in two forms, and can be changed from one to the other by the appropriate influence of lightphotosomnolence(biology) somnolence (induction of sleep) in a nocturnal animal caused by exposure to lightphotostimulableAble to be photostimulatedphotoswitchable(nanotechnology, biotechnology) Capable of being photoswitched, or switched by an optical signal.photosynthesiseAlternative spelling of photosynthesize.photosynthesizeTo synthesize carbohydrates from carbon dioxide and water using the energy of light by photosynthesisphototheodoliteA theodolite with an attached camera.phylactolaemate(zoology) Any member of the Phylactolaemata class of bryozoans.phyllomanganate(mineralogy) A manganate where the structure has a two dimensional sheet.phyllotungstite(mineralogy) An orthorhombic yellow mineral containing calcium, hydrogen, iron, oxygen, and tungsten.phylomitogenomeThe mitogenome of a specific phylum or speciesphysiocognitiveRelating to the physiology of cognitionphytoceramidase(biochemistry) A ceramidase that acts upon phytoceramidesphytodepurativeCausing or relating to phytodepuration.phytoflagellateAny dinoflagellate of the class Phytomastigophorea.phytometabolite(biochemistry) A plant metabolitephytonematicideAny nematicide of plant originphytoprotectiveThat confers phytoprotectionpicrylhydrazine(organic chemistry) The organic hydrazine obtained formally by replacement of the -OH of picric acid by -NH-NH2piezocapacitiveWhose electrical capacitance varies according to applied pressurepiezoconductiveRelating to piezoconduction.piezoresistanceElectrical resistance induced by applied mechanical stress.piperazinedione(organic chemistry) Any of three isomeric diketones derived from piperazinepiperidineamine(organic chemistry) Any of three isomeric primary amines derived from piperidinepiperidinedione(chemistry) Any derivative of piperidine with two ketone functional groups.pipermethystine(organic chemistry) A toxic alkaloid present in the aerial portions of the kava plant.piprinhydrinateA histamine 1 receptor antagonist.plagioleucitite(geology) An altered form of leucititeplastiglomerate(geology) A type of rock with plastic inclusionsplatinochloride(chemistry) A double chloride of platinum and some other metal or radical; a salt of platinochloric acid.platypterygiineAny thunnosaur of the subfamily Platypterygiinaeplumbomicrolite(mineralogy) An isometric-hexoctahedral mineral containing calcium, hydrogen, lead, oxygen, tantalum, and uranium.plumbotellurite(mineralogy) An orthorhombic mineral containing lead, oxygen, and tellurium.pluriarticulateHaving many joints / articulationspluricarpellate(botany) Having many carpelspneumonectomize(surgery) To carry out a pneumonectomypoliothyrsoside(organic chemistry) The glycoside [(2R,3S,4S,5R,6S)-3,4,5-trihydroxy-6-[4-hydroxy-2-(hydroxymethyl)phenoxy]oxan-2-yl]methyl benzoatepolluosensitive(biology, of an organism) sensitive to environmental pollutionpoltergeistlikeResembling or characteristic of a poltergeist.polybenzoxazineAny of a range of thermosetting resins derived from a benzoxazinepolycarbosilane(organic chemistry) Any polymer composed of carbosilane residues.polycarboxylate(organic chemistry) Any ester of a polycarboxylic acidpolycellulosomeA cluster of tightly-packed cellulosomespolychloroprene(organic chemistry) Synonym of neoprene.polycombustibleSynonym of multicombustible.polycrystallineComposed of an aggregate of very small crystals in random orientationspolydiacetylene(chemistry) Any of several electrically conducting polymers made from the polymerization of substituted diacetylenes.polyelectrolyteA polymeric electrolyte (such as a protein).polyglutamylase(biochemistry) Any enzyme that catalyzes polyglutamylation.polyglutamylateTo undergo polyglutamylationpolyheterocycle(organic chemistry) A polymer composed of heterocyclic monomerspolyisobutylene(organic chemistry) Any polymer composed of isobutylene monomerspolylactosamine(biochemistry) A polysaccharide having lactosamine componentspolymannuronate(biochemistry) A polymeric form of mannuronatepolyoxometalate(chemistry) Any of several metallates containing cluster of transition metal atoms ligated to oxygen and other atoms; they are either synthetic or occur naturally as mineralspolyoxyethylene(chemistry) any polymer of ethylene glycol having a general formula HO-(CH₂CH₂O)ₙ-H; they are used in the manufacture of emulsifierspolyphosphatase(biochemistry) Any enzyme that hydrolyses polyphosphatespolyphosphazene(chemistry) an inorganic polymer in which the repeating group is a phosphazene; the general formula is [-N=P(X)₂-]ₙpolyphosphonateAny polymer of one or more phosphonatespolyphthalamideA thermoplastic synthetic resin containing polyamide where most of the carboxylic acid portion of the repeating unit is composed of a combination of terephthalic and isophthalic acids.polypyrrolidone(organic chemistry) Any polymer composed of pyrrolidone monomers; Synonym of polyvinylpolypyrrolidone.polyquinazolineA polymeric form of a quinazoline.polyricinoleate(organic chemistry) A polymeric form of ricinoleatepolysporangiateSynonym of polysporangiophyte.polysuccinimide(organic chemistry) The polyimide of succinic acidpomegranatelikeResembling or characteristic of a pomegranate.porphodimethene(organic chemistry) A porphyrin that contains two free methylene radicalspostadolescenceThe period of life following adolescence.postagricultureAfter the advent of agriculture.postconvergenceFollowing convergencepostdivestitureAfter divestiture.postgerminativeFollowing germinationpostintegrativeFollowing integrationpostlegislativeAfter the introduction of legislation.postmaintenanceAfter maintenance.postobstructiveFollowing (the removal of) an obstructionpostperformanceOccurring after a performancepostpreparativeFollowing preparationpostreplicativeFollowing replicationpostsuppurativeFollowing suppuration.preacquaintancePrevious acquaintance or knowledge.preconfigurableAble to be preconfigured.preconstructiveRelating to preconstruction.predeterminableThat can be predeterminedprehabilitativeRelating to, or promoting prehabilitationprehypertensiveHaving prehypertension (fairly high blood pressure).preindependenceAlternative spelling of pre-independence.prenylflavanoneAny prenylated flavanone.prepropheromoneA precursor of a propheromoneprereproductivePrior to being reproductiveprimeverosidase(biochemistry) beta-glucosidaseprobasisterniteA cuticular element, ventral of the tympanal membrane, in some dipteransproblematizableCapable of being problematized.procrastinativeTending to procrastinate; supporting or suggesting procrastination.prodegenerativeThat leads to degenerationproductionalise(British) Alternative spelling of productionize.productionalize(transitive, business) To adopt (an approach or technology) in a live production environment.professionaleseCharacteristically professional language or jargonprofessionaliseAlternative spelling of professionalize.professionalizeTo make something professionalprognosticativeServing to prognosticate.prohypertensiveThat produces hypertensionproneuropeptideA compound that promotes formation of a neuropeptidepropatylnitrateA particular nitrate.propentofyllineA xanthine derivative with purported neuroprotective effects.propiolaldehyde(organic chemistry) An organic compound with molecular formula HC₂CHO, a colorless liquid with explosive properties.propionaldehyde(organic chemistry) The aliphatic aldehyde CH₃-CH₂-CHO; it is used in the manufacture of plastics etc.proportionalizeTo form a proportionalitypropylhexedrine(pharmacology) An adrenergic compound that is a sympathomimetic with varied medicinal uses.proregenerativeThat leads to regenerationprosobranchiate(zoology) Synonym of prosobranch (“having the gills anterior to the heart”).prostatectomize(surgery) To perform a prostatectomy.prothioconazoleA particular fungicide.protoatmosphereThe gaseous components of a protoplanetprotobranchiateRelating to, or characteristic of bivalve molluscs of the subclass Protobranchiaprotocatechuate(organic chemistry) Any salt or ester of protocatechuic acidprotochromosomeA mass of chromatin in a cell nucleus that develops into a chromosomeprotovertebrateRelating to the protovertebrapsammohalophyteA halophyte that thrives in sandy conditionspseudoanticline(geology) An anticline caused by any nontectonic mechanismpseudocaudosideA particular steroid glycoside.pseudocoelomate(biology) Of, pertaining to, or possessing a pseudocoel (pseudocoelom).pseudocotunnite(mineralogy) An orthorhombic-dipyramidal mineral containing chlorine, lead, and potassium.pseudodiffusiveRelating to, causing, or by means of pseudodiffusionpseudodipeptide(organic chemistry) Any compound that has a fragment of general formula -C(NH₂)-CO-NH-C(COOH)- but is not derived from two amino acidspseudodominance(genetics) The situation in which the inheritance of a recessive trait mimics a dominant pattern.pseudoeffective(mathematics) Having a nonnegative intersection product with every ample divisor and numerically eventually free if the intersection product with every positive divisor is non-negative.pseudoephedrine(pharmacology) A sympathomimetic alkaloid commonly used as a decongestant; a chemical compound, an isomer of ephedrine, with the formula C₁₀H₁₅NO.pseudograsserieA disease of the gypsy moth, caused by a coccobacillus, with symptoms resembling those of grasserie.pseudohaplotype(genetics) A group of alleles located on the same paternal or maternal chromosomepseudohomologueAlternative form of pseudohomolog.pseudohomophoneA non-word that is mistaken for a homophone, such as werk for workpseudoinnocenceFalse innocence; what appears to be innocent but is in fact not.pseudointerface(computing) A software component that acts like a network interface but is not a true interface.pseudoisoenzyme(biochemistry) A variant conformation of an enzyme (that appears to be an isoenzyme)pseudomagnitudeA measurement that gives an indication of size but which is not a true magnitude. For example some pseudomagnitude values can be negative.pseudomalachite(mineralogy) A mineral containing copper, hydrogen, oxygen, and phosphorus.pseudomasculinemasculine or apparently masculine in certain aspects, but not truly masculinepseudomenopauseA state similar to that of the menopause brought about by the administration of hormonespseudometeoriteA rock that is believed to be a meteorite, but is in fact terrestrial in origin.pseudonamespace(computing, rare) A false namespace achieved by other means.pseudonarrativeApparently, but not actually, narrative.pseudonaviculaeplural of pseudonaviculapseudonormaliseAlternative form of pseudonormalize.pseudonormalizeTo make, or to become pseudonormalpseudopeptidase(biochemistry) Synonym of pseudoprotease.pseudophenotypeA pseudovariable, used in genetic analysis, that takes the place of a phenotypepseudopterolide(organic chemistry) Any of a group of cytotoxic diterpenoids present in pseudopteranespseudoreference(physics, chemistry, attributive) Describing reference electrodes whose potential, though not constant, varies predictively.pseudoreflexive(grammar) Of a verb: requiring the use of a reflexive construction when no reflexive action is actually taking place.pseudoreplicate(statistics) Any of a group of interdependent data that are mistakenly treated as independent.pseudosacrificeSomething resembling a sacrifice that is not a true sacrifice, especially (chess) an offer of material made at no risk, since acceptance would lead to the gain of equal or greater material or checkmate.pseudosensitiveappealing to a superficial or exaggerated need for tactpseudosentienceA state or condition that is not sentience but seemingly or nearly approaches it or simulates it.pseudosinhalite(mineralogy) A monoclinic-prismatic colorless mineral containing aluminum, boron, hydrogen, magnesium, and oxygen.pseudosubstrate(biochemistry) Any substance that mimics the substrate of an enzyme and thus inhibits its activitypseudotachylite(mineralogy) A dark, glassy rock generated by frictional heat within faultspseudotachylyteAlternative form of pseudotachylite.pseudotemperateApparently temperatepseudotolerance(pharmacology) A patient's requirement for an increased dose of a drug for reasons other than the patient's body having come to tolerate the existing dose.pseudouridylateAny salt or ester of pseudouridylic acid (pseudouridine 5'-phosphate)psuedosubstrateMisspelling of pseudosubstrate.psychoaffectivePertaining to the emotional aspects of an individual's psychological makeup.psychocognitive(psychology) Relating to the forms of mental processing that underpin cognition.psychoeducativeRelating to psychoeducation.psychoendocrineRelating to the interaction of the mind and the endocrine systempterygopalatine(anatomy, relational) Of or pertaining to the pterygoid process of the sphenoid bone and the palatine bone.pterygoquadrate(anatomy) Of or relating to the pterygoid and quadrate bones or cartilages.ptesculentoside(organic chemistry) A norsesquiterpenoid glucoside present in the bracken Pteridium esculentumpulmobranchiate(zoology) Breathing by means of lung sacs.pushcharovskite(mineralogy) A triclinic mineral containing arsenic, copper, hydrogen, and oxygen.pyranoglucoside(biochemistry) The pyranose form of a glucosidepyridoimidazole(organic chemistry) A bicyclic heterocycle composed of a pyridine ring fused to one of imidazolepyridostigimineMisspelling of pyridostigmine.pyrimidinedione(chemistry) Any of a class of chemical compounds characterized by a pyrimidine ring substituted with two carbonyl groups.pyrophosphatase(biochemistry) An acid anhydride hydrolase that acts upon diphosphate bondspyrroloindoline(organic chemistry) Any of several isomeric tricyclic heterocycles composed of a pyrrole ring fused to indolinepyrrolopyridine(organic chemistry) Any heterobicyclic compound containing fused pyrrole and pyridine ringspyrrolotriazine(organic chemistry) An organic compound composed of a pyrrole ring fused to a triazine ring, or a derivative thereof.