Other Ending Letters

All 389 Matching Words

pabulation(obsolete, rare) The act of eating or feeding.pachymaranA glucan, derived from Basidiomycetes, used as an enzyme substratepacifastinAny of a group of serine proteinase inhibitors found in arthropodspactamycinAn antitumor antibiotic isolated from Streptomyces pactumpaddymelon(Australia) Any of various cucurbitaceous plants, especially Cucumis myriocarpus, native to Africa but naturalized in inland Australia.paddywagonAlternative form of paddy wagon.paginationThe act of creating pages for a document, book, etc., or determining when to truncate text on the pages.paillassonA kind of straw bonnet.paindemain(obsolete) A kind of fine white bread.paintathonAn event where volunteers come together to paint.palanqueenObsolete form of palanquin.paleobasinAn extinct river basinpaleohumanancient (prehistoric) humanpaleoplain(geology, geomorphology) A buried erosion plain; a particularly large and flat erosion surface.palesimianAlternative letter-case form of Palesimian.palestrianOf or relating to the palestra, or to wrestlingpalfreymanA groom who specializes in palfreys or good quality riding horses.paliferminA human recombinant keratinocyte growth factor produced in Escherichia coli.palliationThe alleviation of a disease's symptoms without a cure; temporary relief.pallilysin(biochemistry) A lysin present in Treponema pallidumpalustrianPalustrine, palustral.panadiplon(pharmacology) An anxiolytic drug.panantigenAbove or over a ductpancratian(historical or archaic) athletic (pertaining to athletes)pancrationAlternative form of pankration.pancreatinA mixture of several digestive enzymes produced by the exocrine cells of the pancreas, composed of amylase, lipase and protease.pankeratinSynonym of pancytokeratin.pankration(martial arts) An Ancient Greek martial art combining aspects of boxing and wrestling, introduced in the Greek Olympic games in 648 BC.panomphean(archaic) Uttering ominous or prophetic voices; divining.panopticon(figurative, by extension) A place in which people are subject to constant surveillance at totalitarian command.panosialin(organic chemistry) A particular resorcinolic lipid.panregulon(genetcs) Relating to all regulons of an organismpanstrosinA particular steroid glycoside.paperchainAlternative form of paper chain.paperwomanA woman who delivers newspaperspappalysin(biochemistry) Any of a class of peptidases associated with pregnancypapulation(medicine) The formation of papules.parabactin(organic chemistry) The bacterial iron chelator (2Z,4S,5R)-N-[4-[(2,3-dihydroxybenzoyl)amino]butyl]-N-[3-[(2,3-dihydroxybenzoyl)amino]propyl]-5-methyl-2-(6-oxocyclohexa-2,4-dien-1-ylidene)-1,3-oxazolidine-4-carboxamideparacaseincasein coagulated with chymosinparacelsinA peptide antibiotic present in a Trichoderma speciesparacoccin(biochemistry) A lectin found in Paracoccidioides brasiliensis.paradiseanparadisiacalparadisianparadisiacalparaglobinSynonym of paraglobulin.paralbumin(archaic, biochemistry) A proteid-like body found in the fluid from ovarian cysts and elsewhere. It is generally associated with a substance related to, if not identical with, glycogen.paralemmin(biochemistry) Any of a group of prenylated and palmitoylated phosphoproteins associated with some cell membranesparamagnon(physics) Damped magnons existing in a disordered magnetic state.paramedian(surgery) to one side of the median positionparametron(physics) A type of resonant logic element that may be used to represent a binary digit.paramyosin(biochemistry) A muscle protein, similar to myosin, present in some invertebrates.paraneuron(cytology) An epithelial cell, in taste buds, that can secrete a neurotransmitter but does not have dendrites or an axonparapectin(organic chemistry, archaic) A gelatinous substance made by boiling pectinparaplegin(biochemistry) A metalloprotease associated with paraplegiaparapteronA small lateral sclerite on the thorax of an insectparasporinAny of a group of proteins with anticancer activity, derived from Bacillus thuringiensis.paratendonAlternative form of paratenon.parathyrinSynonym of parathyroid hormoneparegmenon(rhetoric) The juxtaposition of words that have the same roots; using cognate words together, such as "curvaceous curves", "my loving and beloved wife", or "he's a manly man".parnaparin(pharmacology) A particular antithrombotic.parnassian(entomology) A papilionid butterfly of the holarctic alpine genus Parnassius or the subfamily Parnassiinae; an apollo butterfly.parotideanRelating to the parotid gland.parovarianAlternative form of paraovarian.parylationSynonym of poly(ADP-ribosyl)ation.passeridan(ornithology) Of or relating to the Passerida.pathocidin8-azaguanine, a purine analogue with antineoplastic activity.pathotoxinA pathogenic toxinpatination(sculpture) The application of a patina.patriation(Commonwealth) The transfer of a governmental power from a former mother country to a newly independent one.payndemainA high-quality white bread, baked from the finest sifted flour, suitable for the lord of the manor.peculation(law, chiefly historical) The wrongful appropriation or embezzlement of shared or public property, usually by a person entrusted with the guardianship of that property.pedestrian(not comparable) Of or intended for those who are walking.pedication(uncommon, dated) Anal sex.pefloxacin(pharmacology) A synthetic chemotherapeutic agent used to treat severe and life-threatening bacterial infections.pejorationThe act or process of becoming worse; worsening or degeneration.pelanserinA serotonin antagonist.pelargonin(organic chemistry) An anthocyanin that is a glucoside of pelargonidinpeliomycin(pharmacology) A particular cytotoxic agent.pellucidin(organic chemistry) An antinociceptive present in Peperomia pellucidapenaeideanAny marine crustacean of the family PenaeidaepencycuronA phenylurea fungicide with specific activity against the plant pathogen Rhizoctonia solani.pendidikan(Malaysia, informal, slang) Moral studies, a school subject for non-Muslim students in Malaysia that teaches about personal morality.penetratin(biochemistry) A peptide, derived from a protein, that can penetrate a cell wallpenicillin(mycology) A blue mold of the genus Penicillium that produces penicillin.pennillionplural of pennillpennogeninA particular spirostanol glycosidepentathlonAn ancient athletics discipline, featuring five events: stadion, wrestling, long jump, javelin and discuspentstemonAlternative form of penstemon.peplomycin(pharmacology) A bleomycin antibiotic.peppercornThe seeds of the pepper plant Piper nigrum, commonly used as a spice, usually ground or crushed.pepsinogen(biochemistry) A zymogen that is converted into pepsin by the hydrochloric acid in the stomach.peptotoxinA poisonous ptomaine found in peptones and in putrefying albuminous substances, such as fibrin, casein, brain, liver, and muscle.peramelianAny marsupial of the former order Peramelia (now Peramelemorphia)perceptionThe organisation, identification and interpretation of sensory information.perceptronan element, analogous to a neuron, of an artificial neural network consisting of one or more layers of artificial neuronspercussion(countable) The collision of two bodies in order to produce a sound.peremption(law, obsolete) A quashing (of law, or a lawsuit)perfectionA quality, endowment, or acquirement completely excellent; an ideal; faultlessness; especially, the divine attribute of complete excellence.perflation(obsolete) The act of perflating, or blowing through.perflubronperfluorooctyl bromide, a fluorochemicalperflutrenA preparation of microspheres used as an ultrasound contrast agentperiareionThe point in an elliptical orbit around Mars that is closest to Mars.periastron(astronomy) That point of the orbit of a celestial body which is closest to the star around which the body is orbiting.pericardin(biochemistry) A protein, similar to collagen, that is involved in the morphogenesis of heart epithelium in some insectspericaryonMisspelling of perikaryon.peridexionA legendary tree believed to grow in India that attracts doves and repels dragons.perifusion(medicine) fluid flow, especially that of a solution of drugs or a suspension of cells in a biological in vivo or in vitro system.perihelion(astronomy) The point in the elliptical orbit of a comet, planet, etc., where it is nearest to the Sun.perikarionMisspelling of perikaryon.perikaryonThe cell body of a neuron or of an odontoblast.perilesionAlternative form of perilesional.perilithon(ecology) A form of periphyton found on submerged rocksperipherin(biochemistry) An intermediate filament protein expressed mainly in neurons of the peripheral nervous systemperiphilin(biochemistry) Any of a family of proteins associated with the differentiation of skin cellsperiphyton(ecology) A mixture of algae, cyanobacteria, heterotrophic microbes, and detritus that is attached to submerged surfaces in most aquatic ecosystems.periplakinA protein that is a component of desmosomes and of the epidermal cornified envelope in keratinocytes.periplocinA particular steroid glycoside.peritendon(anatomy) The membrane surrounding the tendon.perlectionthe reading through of something.perlustrin(biochemistry) A protein found in the shell of abalonespermafrown(informal) A permanent frown.permansion(obsolete, rare) Permanence.permeationThe movement of a fluid through a porous or permeable solid.permethrinA synthetic insecticide, C₂₁H₂₀Cl₂O₃, used to treat head lice, nits, and scabies; as an active ingredient in flea collars; and to eradicate woodworm infestations.permissionauthorisation; consent (especially formal consent from someone in authority)permixtionObsolete form of permission.perorationA discourse or rhetorical argument in general.perpension(obsolete) Careful consideration; pondering.perpession(obsolete) suffering; enduranceperplexionCondition or state of being perplexed; perplexity.persicarin(organic chemistry) A flavonoid sulfate 4′,5,7-trihydroxy-3′-methoxy-4-oxoflav-2-en-3-yl hydrogen sulfatepersuasionAn argument or other statement intended to influence one's opinions or beliefs; a way of persuading someone.perswasionObsolete form of persuasion.pervention(archaic) A coming or arrival; adventperversionThe action of perverting someone or something; humiliation; debasement.petakelvin(metrology) An SI unit of temperature equal to 10¹⁵ kelvins. Symbol: PKpetitgrainAn essential oil that is extracted from the green twigs of the bitter orange plant.peucedanin(organic chemistry) A tasteless white crystalline substance extracted from the roots of the sulphurwort (Peucedanum), masterwort (Imperatoria), and related plants (tribe Selineae).phaelonionAlternative form of phelonion.phalangian(anatomy, archaic) phalangealphallation(biology, rare) Sexual intercourse by means of a penis.phalloidin(biochemistry) A toxic cyclic peptide obtained from the mushroom Amanita phalloidespharmacian(rare, archaic) Synonym of pharmacist: a person who sells medicines.phaseollinAlternative form of phaseolin.phebalosin(organic chemistry) A coumarin found in Phebalium species.phenacetinAny of a class of analgesic and antipyretic drugs derived from acetanilide.phenformin(pharmacology) An antidiabetic drug of the biguanide class.phenomenonA thing or being, event or process, perceptible through senses; or a fact or occurrence thereof.phenothrinA synthetic pyrethroid that kills adult fleas and ticks.pheophytin(biochemistry) A chlorophyll from which the central magnesium atom has been removedphiloromanFriendly with Rome.phisherman(computing, Internet) The criminal performing phishing attacks.phleomycin(medicine) An antibiotic obtained from Streptomyces verticillatus.phlogiston(chemistry, historical) The hypothetical fiery principle formerly assumed to be a necessary constituent of combustible bodies and to be given up by them in burning.phlorhizinAlternative form of phlorizin.phloridzinAlternative form of phlorizin.phobalysinA photobacterial lysinphomazarin(organic chemistry) An aza-anthraquinone pigment isolated from the fungus PyrenochaetaphosdiphenA particular fungicide.phosphagen(biochemistry) Any of a class of energy storage compounds, chiefly found in muscular tissue in animals, allowing a high-energy phosphate pool to be maintained in a concentration range, which, if it all were ATP, would create problems due to the ATP consuming reactions in these tissues.phosphepin(organic chemistry) A chemical substance with a seven-membered unsaturated ring molecule containing a phosphorus atom.photomaton(obsolete) A photo booth.photomeson(physics) A meson (usually a p-meson) ejected from a nucleus by an impinging photonphototoxin(medicine, toxicology) Any toxin that causes an allergic reaction in the skin, developing into photosensitivity.phragmalin(organic chemistry, biochemistry) A limonoid found in the Indian mahogany tree.phthalogenphthalocyaninephycobilin(biochemistry) Any of a group of bilins (pigments derived from porphyrins) found in some photosynthetic algae; they are open-chain tetrapyrroles related to mammalian bile pigments.phycotoxinAny of many toxins produced by various forms of alga and seaweedphylacogenAny of several bacterial derivatives developed by Dr. A. F. Schafer in 1910 to combat bacterial infections.physagulinA particular steroid glycoside.phytomelanAlternative form of phytomelanin.phytotoxin(biochemistry) Any toxic substance produced by a plant.phytuberin(organic chemistry) A sesquiterpenoid lactone found in bacterially-rotted potato tuberspicocrocinMisspelling of picrocrocin.picokelvin(physics) A unit of temperature equal to 10⁻¹² of a kelvinpiconewton(metrology) An SI unit of force equal to 10⁻¹² newtons. Symbol: pNpicoplatin(pharmacology) A platinum-based antineoplastic drug.picoradian(astronomy) A unit of solid angle equal to 10⁻¹² radianspicrotoxin(organic chemistry) A poisonous material, extracted from the seeds of plants of species Anamirta cocculus, used as a stimulant; it is a complex of two alkaloids: picrotoxinin and picrotin.piericidinAny of a group of microbial hydroxypyridine antibiotics that associate with ubiquinone binding sitespigwidgeon(rare) A small or petty person, creature or object, especially a fairy, dwarf, imp, or elf.pikachurin(biochemistry) A dystroglycan-interacting polysaccharide which has an essential role in the precise interactions between the photoreceptor ribbon synapse and the bipolar dendrites.pikromycinA particular macrolide antibioticpilocarpinAlternative form of pilocarpine.pilomotionThe goose flesh reflex.pimobendanA veterinary medication used in the management of heart failure in dogs.pincushionThe names of various plants with flowers or other parts resembling a pincushion.pinosylvin(organic chemistry) A pre-infectious stilbenoid toxin, trans-3,5-dihydroxystilbenepipobromanA particular drug used in the treatment of blood disorders.piposulfanA methanesulfonate with possible applications in treating leukemia.pirlimycin(pharmacology) A lincosamide antimicrobial used to treat mastitis in cattle.pitchwomanA female pitchman; a saleswoman.pitchwomenplural of pitchwomanpitrilysin(biochemistry) A particular bacterial protease.pixelationA blocky effect caused by enlarging a bitmap so that individual pixels can be distinguished.pixilationA stop-motion technique where live actors are used as a frame-by-frame subject in an animated film, by repeatedly posing while one or more frame is taken and changing pose slightly before the next frame or frames.placewomanA female placeman.plackstrinMisspelling of pleckstrin.placoidian(zoology, dated) A placoid fish.plaminogenMisspelling of plasminogen.plantationA large farm; estate or area of land designated for agricultural growth. Often includes housing for the owner and workers.plasmationThe act of forming or moulding.plasmatronA hot-cathode tube with controlled anode current.plasmepsin(biochemistry) Any of a class of aspartic acid protease enzymes produced by the plasmodium parasite.plasticianSomeone or something that transforms or reshapes objects.plastiskin(science fiction) synthetic skin, especially that of an android.platynotanAny anguimorph lizard of the clade Platynotapleckstrin(biochemistry) A protein found in plateletspleotelsonA fusion of the last abdominal segment of an arthropod and its telsonplicamycin(pharmacology) An antibiotic C₅₂H₇₆O₂₄ with antineoplastic activity which is produced by three bacteria of the genus Streptomyces (Streptomyces argillaceus, Streptomyces tanashiensis, and Streptomyces plicatus), acts by inhibiting DNA transcription and replication, and is administered intravenously especially in the treatment of malignant tumors of the testes or in the treatment of hypercalcemia and hypercalciuria associated with advanced neoplastic disease.plinabulinAn experimental anticancer drug, a synthetic analog of phenylahistin.ploutonion(historical) A sanctuary dedicated to the Ancient Greek and Roman god Pluto, usually at a location producing poisonous emissions, believed to represent an entrance to the underworld.pluviationThe raining of fine particles (typically sand) through the airpoculation(rare) Drinking of wine or other intoxicating liquor.podoplanin(biochemistry) A particular glycoproteinpogamogganA Native American weapon consisting of a stone or piece of antler fastened to the end of a slender wooden handle.poioumenon(literature) A specific type of metafiction in which the story is about the process of creation (sometimes the creation of the story itself).polescreen(now historical) A screen mounted on a pole.poligeenan(biochemistry) A degraded form of carrageenan.politicianOne engaged in politics, especially an elected or appointed government official.polititianObsolete form of politician.polycarbon(inorganic chemistry) polymeric carbon (such as graphite or graphene)polycation(chemistry) any cation having more than one positive chargepolychitin(biochemistry) A polymer of chitinpolychoron(geometry) A four-dimensional polytope.polycottonA fabric made from a blend of cotton and artificial fibres, especially of polyester fibrespolycystin(biochemistry) Any of a group of glycoproteins, mutation of which is implicated in polycystic kidney disease.polydomainComposed of multiple (crystal) domainspolygamian(botany) Polygamous.polyglucan(biochemistry) Any polysaccharide containing glucan unitspolyglycan(biochemistry) A polymeric form of a glycanpolygynian(botany) Having many styles; belonging to the order Polygynia.polyhedrin(biochemistry) A protein that forms the crystalline matrix of viral polyhedral bodiespolyhedron(geometry) A solid figure with many flat faces and straight edges.polykaryon(cytology) A multinuclear cellpolymelianAn animal or person that has polymeliapolyolefin(chemistry) A polymer (such as polyethylene) made by the polymerization of an olefin.polyphagan(zoology) Any member of the beetle suborder Polyphaga.polyptoton(rhetoric) A stylistic scheme in which words from the same root are used together, or a word is repeated in a different inflection or case.polyrattanA synthetic resin-based material resembling rattan.polytopian(rare) Someone who visits many places.pomeranianAlternative letter-case form of Pomeranian (dog)pomeridian(rare) Of or pertaining to the afternoon.pompillion(obsolete) An ointment or pomatum made of black poplar buds.populationThe people living within a political or geographical boundary.porrection(archaic) The act of stretching forth, or holding forward, as if offering.portacabinA prefabricated hut that is transportable, often used as an office or for storage.portcrayonObsolete form of porte-crayon.portensionThe act of foreshowing; foreboding.possessionA control or occupancy of something for which one does not necessarily have private property rights.possewomanA female member of a posse.postcolumn(chemistry) Describing any process carried out on the materials leaving a chromatography columnpostfusionFollowing fusionpostillionAlternative spelling of postilion.postindianA Native American.postlesionAfter a lesion.postmedian(anatomy) posterior to the medianpostmodern(literally) Relating to what follows the modern era.postperson(uncommon) A letter carrier of any gender.postprisonAfter release from prison.postseason(US, sports) The period after the end of the normal sports season during which extra games are held (such as playoffs or championships).postsermon(rare) After a sermon.potchermanOne who operates a potcher.poultrymanA male poulterer.powderhornAlternative form of powder horn.powerchainAlternative form of power chain.powertrainThe group of components in a vehicle that generate power and deliver it to the road surface, water, or air.practicianA practitioner; someone who practises a particular profession, especially medicine.pradimicinAny of a certain class of antibiotics.praetorian(Ancient Rome) Of or pertaining to a praetor.preabdomenThe enlarged anterior portion of the abdomen of a scorpion or sea scorpionprealbumin(dated, biochemistry) TransthyretinpreauctionBefore an auction.prebargainPrior to a bargain being struck.precautionPrevious caution or care; caution previously employed to prevent misfortune or to secure good.preception(rare, obsolete) A preconception or presupposition.precession(uncountable) Precedence.precipitinAny antibody that reacts with an antigen to form a precipitate.preclusion(countable) The act of precluding.precondemn(transitive) To condemn beforehand.preconsign(transitive) To consign beforehandprecurtainBefore the curtain rises at the start of a play.predictionA statement of what will happen in the future.preemptionAn act or process that preempts; a preventive or forestalling action; as:preexilianBefore an exile, especially the Biblical exile of the Jews.preflexion(zoology) Before the flexion stage of larval developmentpregabalin(pharmacology) An anticonvulsant drug used for neuropathic pain and as an adjunct therapy for seizures.pregnation(obsolete) Pregnancy.prehensionThe act of grasping or gripping, especially with the hands.prelectionA public lecture or reading, especially delivered at a college or university.premoistenTo moisten in advance.premonsoonBefore a monsoonprensation(obsolete) The act of seizing with violence; seizurepreopinionOpinion previously formed; prejudice.prepatternA pattern established in advancepreplosionThe phonological process of preocclusion.preportionTo divide into individual portions before use.preprotein(biochemistry) A polypeptide chain that is in the process of growing into a protein by the addition of successive amino acid moietiespresection(transitive) To cut into pieces in advance.presenilin(biochemistry) Any of a class of transmembrane proteinspresension(obsolete) a previous perception; a premonitionpresentionObsolete form of presension.presessionBefore (the initiation of) a sessionpresharpen(transitive) To sharpen in advance.preshorten(transitive) To shorten in advance.presswomanA female pressman.prestation(UK, law, obsolete) A payment of money; a toll or duty.presweetenTo sweeten in advance.preswollenswollen in advancepresylvian(anatomy) Anterior to the Sylvian fissure of the brainpretendianAlternative letter-case form of PretendianpretensionA claim or aspiration to a particular status or quality.pretentionArchaic spelling of pretension.preventionThe act of preventing or hindering; obstruction of action, access, or approach; thwarting.previtaminSynonym of provitamin.primordianAny of several kinds of plum.proacrosin(biochemistry) A protein that is a precursor of acrosin.proception(philosophy) according to the philosophy of Justus Buchler, the process of the development of a person's experience by the interaction of behaviour and the environment.processionThe act of progressing or proceeding.prochorionA temporary structure that surrounds the blastodermic vesicle in some animals.procoelian(obsolete, zoology) Any of the Procoelia, a former suborder of Crocodilia.productionThe act of producing, making or creating something.profection(obsolete) A setting out; going forward; advance; progression.professionA declaration of faith.progastrinThe inactive precursor of gastrinproghrelin(physiology) Any of a class of peptides produced by ghrelin cells of the gastric mucosaprogoitrin(organic chemistry) A glycoside of 1,5-vinyl-2-thiooxazolidone present in the foliage of brassicas.prohibitin(biochemistry) A protein, found in almost all living things, thought to have multiple functions.proinsulin(biochemistry) A polypeptide that is the prohormone precursor of insulinprojectionSomething which projects, protrudes, juts out, sticks out, or stands out.prokimenonAlternative form of prokeimenon.prolapsion(medicine, obsolete) prolapseprolixicinAn antimicrobial peptide isolated from Rhodnius prolixuspromelaninThat promotes the formation of melaninpromessionThe disposal of human remains by freeze-drying.promissionA style of wrestling that combines professional wrestling moves and submission holds.promutagenAny material that promotes the production of a mutagen.pronephron(biology) The first part of the urogenital system to be differentiated in a vertebrate embryo, which functions as a simple excretory organ in simpler forms, serves as a provisional kidney in some fish and amphibians, and only appears as a temporary embryonic structure in reptiles, birds, and mammals.propension(archaic) Propensity.propikacin(pharmacology) An aminoglycoside antibiotic.propleuronThe lateral sclerite of the anterior division of the thorax of an insectproportion(countable) A quantity of something that is part of the whole amount or number.proprotein(biochemistry) Any protein that is cleaved by a convertase to form a smaller protein or biologically-active polypeptide.propulsionThe process of propelling, driving, or pushing, typically forward or onward; a propulsive force or impulse.propylaeon(historical contexts, especially Ancient Greece and Ancient Rome) Alternative form of propylaeum.proruptionThe act or state of bursting forth; a bursting out.prosaposin(biochemistry) A glycoprotein that is a precursor for saposins A, B, C, and D.prosectionAn anatomical dissection carried out by an experienced anatomist as a demonstration for others.prostratin(organic chemistry) A phorbol that acts as an activator for a protein kinase.protectionThe process of keeping (something or someone) safe.protensionA drawing out; extension; stretching; duration.protention(philosophy) An anticipation of a future eventprotirelin(pharmacology) Thyrotropin-releasing hormone.protistianAlternative form of protistan.protohumanPertaining to the first humans or the beginning of humankind.prototoxinAny substance that is converted into a toxinprotrusion(uncountable) The act of protruding.provection(linguistics) The carrying forward of a final consonant to a following word, as in "a nickname" from Middle English "an ekename".provitamin(biochemistry) Any biologically inactive compound that may be converted into a vitamin within an animal organismproxorphan(pharmacology) An opioid analgesic and antitussive drug of the morphinan family.pruritogenAny substance that causes pruritus (itching).psalterianRelating to a psalter; musical.psalterion(now historical, rare) Synonym of psaltery.psammaplinAny of a group of cytotoxic bromotyrosine phenols (e.g. N,N"-(dithiodi-2,1-ethanediyl)bis[3-bromo-4-hydroxy-a-(hydroxyimino)-benzenepropanamide) found in some marine spongespseudoexon(genetics) A sequence of nucleic acid bases that has the characteristics of an exon but takes no part in the splicing of genes.pseudoloanAlternative form of pseudo-loan.pseudospin(physics) A quantum degree of freedom analogous to spinpseudoveinAn apparent vein seen on an X-ray image due to hemorrhagepsilocybin(biochemistry) A hallucinogenic alkaloid, C₁₂H₁₅N₂O·H₂PO₃, present in several species of Central American mushroom and producing effects similar to LSD. The prodrug of psilocin.pteranodonA member of Pteranodon, a genus of large pterosaurs, the males of which had a bony crest on the back of the head.pubesceninA particular steroid glycoside.pugeranianA dog that is a cross between a pug and a Pomeranian.pulsetrain(physics) A series of more or less regular pulses.pultrusionA continuous process for manufacture of composite materials with constant cross section.punctationA preliminary treaty or contract.punicalginMisspelling of punicalagin.pupylation(biochemistry) The conjugation of the PUP protein to the amino groups of lysine amino acids in target proteinspurination(organic chemistry) Reaction with, or conversion to a purinepurlieuman(historical) An owner of lands in the purlieu.purportionMisspelling of proportion.pushbuttonAlternative spelling of push-button.putresceinMisspelling of putrescine.pyomelanin(organic chemistry) A pigment, related to melanin, that results from the catabolism of tyrosine and phenylalaninepyoxanthin(chemistry, obsolete) A yellow pigment isolated from Bacillus pyocyanicus.pyrabactinA synthetic sulfonamide, 4-bromo-N-(2-pyridinylmethyl)-1-naphthalenesulfonamide, that mimics the plant stress hormone abscisic acid.pyramidionThe small pyramid which crowns or completes an obelisk or pyramid.pyrocarbonA ceramic form of carbon formed at high temperature from the breakdown of a hydrocarbon gaspyrocottonNitrated cotton, a high explosive that is the main constituent of smokeless powder.pyrogallin(dated, organic chemistry) pyrogallolpyroquilonA particular fungicide.