| parlourmaid | (noun) a maid in a private home whose duties are to care for the parlor and the table and to answer the door | Synonyms: parlormaid |
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| peppermint | (noun) a candy flavored with peppermint oil | Synonyms: peppermint candy |
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| (noun) herb with downy leaves and small purple or white flowers that yields a pungent oil used as a flavoring | Synonyms: Mentha piperita |
| (noun) red gum tree of Tasmania | Synonyms: Eucalyptus amygdalina, peppermint gum, red gum |
| performance | (noun) the act of performing; of doing something successfully; using knowledge as distinguished from merely possessing it | Synonyms: carrying into action, carrying out, execution |
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| (noun) the act of presenting a play or a piece of music or other entertainment | - |
| (noun) any recognized accomplishment | - |
| (noun) a dramatic or musical entertainment | Synonyms: public presentation |
| (noun) process or manner of functioning or operating | Synonyms: functioning, operation |
| performer | (noun) an entertainer who performs a dramatic or musical work for an audience | Synonyms: performing artist |
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| performing | (noun) the performance of a part or role in a drama | Synonyms: acting, playacting, playing |
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| perisperm | (noun) the nutritive tissue outside the sac containing the embryo in some seeds | - |
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| perm | (noun) a series of waves in the hair made by applying heat and chemicals | Synonyms: permanent, permanent wave |
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| permafrost | (noun) ground that is permanently frozen | - |
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| permanence | (noun) the property of being able to exist for an indefinite duration | Synonyms: permanency |
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| permanency | (noun) the property of being able to exist for an indefinite duration | Synonyms: permanence |
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| permanent | (noun) a series of waves in the hair made by applying heat and chemicals | Synonyms: perm, permanent wave |
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| permanganate | (noun) a dark purple salt of permanganic acid; in water solution it is used as a disinfectant and antiseptic | - |
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| permeability | (noun) the property of something that can be pervaded by a liquid (as by osmosis or diffusion) | Synonyms: permeableness |
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| permeableness | (noun) the property of something that can be pervaded by a liquid (as by osmosis or diffusion) | Synonyms: permeability |
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| permeation | (noun) mutual penetration; diffusion of each through the other | Synonyms: interpenetration |
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| (noun) the process of permeating or infusing something with a substance | Synonyms: pervasion, suffusion |
| permissibility | (noun) admissibility as a consequence of being permitted | - |
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| permission | (noun) the act of giving a formal (usually written) authorization | Synonyms: license, permit |
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| (noun) approval to do something | - |
| permissiveness | (noun) a disposition to allow freedom of choice and behavior | Synonyms: tolerance |
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| permissivism | (noun) lenience toward or indulgence of a wide variety of social behavior. | - |
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| permit | (noun) the act of giving a formal (usually written) authorization | Synonyms: license, permission |
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| (noun) large game fish; found in waters of the West Indies | Synonyms: Trachinotus falcatus |
| (noun) a legal document giving official permission to do something | Synonyms: licence, license |
| permutability | (noun) ability to change sequence | Synonyms: permutableness, transposability |
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| permutableness | (noun) ability to change sequence | Synonyms: permutability, transposability |
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| permutation | (noun) complete change in character or condition | - |
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| (noun) the act of changing the arrangement of a given number of elements | - |
| (noun) act of changing the lineal order of objects in a group | - |
| (noun) an event in which one thing is substituted for another | Synonyms: replacement, substitution, switch, transposition |
| pharma | (noun) a company that makes and sells pharmaceuticals | Synonyms: drug company, pharmaceutical company |
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| pharmaceutic | (noun) drug or medicine that is prepared or dispensed in pharmacies and used in medical treatment | Synonyms: pharmaceutical |
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| pharmaceutical | (noun) drug or medicine that is prepared or dispensed in pharmacies and used in medical treatment | Synonyms: pharmaceutic |
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| pharmaceutics | (noun) the art and science of preparing and dispensing drugs and medicines | Synonyms: pharmacy |
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| pharmacist | (noun) a health professional trained in the art of preparing and dispensing drugs | Synonyms: apothecary, chemist, druggist, pill pusher, pill roller |
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| pharmacogenetics | (noun) the branch of genetics that studies the genetically determined variations in responses to drugs in humans or laboratory organisms | - |
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| pharmacokinetics | (noun) the study of the action of drugs in the body: method and rate of excretion, duration of effect, etc. | - |
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| pharmacologist | (noun) someone trained in the science of drugs (their composition and uses and effects) | Synonyms: pharmaceutical chemist |
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| pharmacology | (noun) the science or study of drugs: their preparation and properties and uses and effects | Synonyms: materia medica, pharmacological medicine |
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| pharmacopeia | (noun) (pharmacology) a book containing a compilation of pharmaceutical products with their formulas and methods of preparation | Synonyms: formulary |
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| pharmacopoeia | (noun) a collection or stock of drugs | - |
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| pharmacy | (noun) a retail shop where medicine and other articles are sold | Synonyms: apothecary's shop, chemist's, chemist's shop, drugstore |
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| (noun) the art and science of preparing and dispensing drugs and medicines | Synonyms: pharmaceutics |
| philharmonic | (noun) a large orchestra; can perform symphonies | Synonyms: symphony, symphony orchestra |
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| phytohormone | (noun) (botany) a plant product that acts like a hormone | Synonyms: growth regulator, plant hormone |
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| pinworm | (noun) small threadlike worm infesting human intestines and rectum especially in children | Synonyms: Enterobius vermicularis, threadworm |
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| pisiform | (noun) a small wrist bone that articulates only with the triquetral | Synonyms: os pisiforme, pisiform bone |
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| placoderm | (noun) fish-like vertebrate with bony plates on head and upper body; dominant in seas and rivers during the Devonian; considered the earliest vertebrate with jaws | - |
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| platform | (noun) a raised horizontal surface | - |
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| (noun) any military structure or vehicle bearing weapons | Synonyms: weapons platform |
| (noun) a woman's shoe with a very high thick sole | Synonyms: chopine |
| (noun) the combination of a particular computer and a particular operating system | - |
| (noun) a long, flat raised structure of a railway station, where people get on and off of trains | - |
| (noun) a document stating the aims and principles of a political party | Synonyms: political platform, political program, program |
| poikilotherm | (noun) an animal whose body temperature varies with the temperature of its surroundings; any animal except birds and mammals | Synonyms: ectotherm |
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| polearm | (noun) a close combat weapon in which the main fighting part of the weapon is fitted to the end of a long shaft, typically of wood, thereby extending the user's effective range. | Synonyms: pole weapon |
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| predetermination | (noun) the act of determining or ordaining in advance what is to take place | - |
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| (noun) a mental determination or resolve in advance; an antecedent intention to do something | - |
| (noun) (theology) being determined in advance; especially the doctrine (usually associated with Calvin) that God has foreordained every event throughout eternity (including the final salvation of mankind) | Synonyms: foreordination, predestination, preordination |
| preferment | (noun) the act of preferring | - |
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| (noun) the act of making accusations | - |
| preformation | (noun) a theory (popular in the 18th century and now discredited) that an individual develops by simple enlargement of a tiny fully formed organism (a homunculus) that exists in the germ cell | Synonyms: theory of preformation |
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| pretermission | (noun) letting pass without notice | - |
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| progymnosperm | (noun) an ancestral fossil type from which modern gymnosperms are thought to have derived | - |
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| pseudohermaphrodite | (noun) someone having external genitalia of one sex and internal sex organs of the other sex; not a true hermaphrodite because there is no ambiguity in the sex of the external genitalia and hence no question about gender at birth | - |
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| pseudohermaphroditism | (noun) congenital condition in which a person has external genitalia of one sex and internal sex organs of the other sex | - |
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| psychopharmacology | (noun) the study of drugs that affect the mind | - |
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| ptarmigan | (noun) large Arctic and subarctic grouse with feathered feet and usually white winter plumage | - |
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| pteridosperm | (noun) an extinct seed-producing fernlike plant of the order Cycadofilicales (or group Pteridospermae) | Synonyms: seed fern |
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| quartermaster | (noun) an army officer who provides clothing and subsistence for troops | - |
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| radiopharmaceutical | (noun) pharmaceutical consisting of a radioactive compound used in radiation therapy | - |
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| rainstorm | (noun) a storm with rain | - |
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| reaffirmation | (noun) renewed affirmation | Synonyms: reassertion |
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| rearmament | (noun) the act of arming again | - |
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| redetermination | (noun) determining again | - |
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| reform | (noun) a change for the better as a result of correcting abuses | - |
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| (noun) a campaign aimed to correct abuses or malpractices | - |
| (noun) self-improvement in behavior or morals by abandoning some vice | - |
| reformation | (noun) rescuing from error and returning to a rightful course | Synonyms: reclamation |
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| (noun) improvement (or an intended improvement) in the existing form or condition of institutions or practices etc.; intended to make a striking change for the better in social or political or religious affairs | - |
| reformatory | (noun) correctional institution for the detention and discipline and training of young or first offenders | Synonyms: reform school, training school |
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| reformer | (noun) an apparatus that reforms the molecular structure of hydrocarbons to produce richer fuel | - |
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| (noun) a disputant who advocates reform | Synonyms: crusader, meliorist, reformist, social reformer |
| reformism | (noun) a doctrine of reform | - |
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| reformist | (noun) a disputant who advocates reform | Synonyms: crusader, meliorist, reformer, social reformer |
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| reharmonisation | (noun) a piece of music whose original harmony has been revised | Synonyms: reharmonization |
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| reharmonization | (noun) a piece of music whose original harmony has been revised | Synonyms: reharmonisation |
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| repairman | (noun) a skilled worker whose job is to repair things | Synonyms: maintenance man, service man |
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| ringworm | (noun) infections of the skin or nails caused by fungi and appearing as itching circular patches | Synonyms: roundworm, tinea |
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| roundworm | (noun) unsegmented worms with elongated rounded body pointed at both ends; mostly free-living but some are parasitic | Synonyms: nematode, nematode worm |
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| (noun) infections of the skin or nails caused by fungi and appearing as itching circular patches | Synonyms: ringworm, tinea |
| rumormonger | (noun) a person given to gossiping and divulging personal information about others | Synonyms: gossip, gossiper, gossipmonger, newsmonger, rumourmonger |
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| rumourmonger | (noun) a person given to gossiping and divulging personal information about others | Synonyms: gossip, gossiper, gossipmonger, newsmonger, rumormonger |
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| sandstorm | (noun) a windstorm that lifts up clouds of dust or sand | Synonyms: dust storm, duster, sirocco |
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| schoolmarm | (noun) a woman schoolteacher (especially one regarded as strict) | Synonyms: mistress, schoolma'am, schoolmistress |
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| scleroderma | (noun) an autoimmune disease that affects the blood vessels and connective tissue; fibrous connective tissue is deposited in the skin | Synonyms: dermatosclerosis |
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| sermon | (noun) an address of a religious nature (usually delivered during a church service) | Synonyms: discourse, preaching |
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| (noun) a moralistic rebuke | Synonyms: preaching |
| sermoniser | (noun) someone whose occupation is preaching the gospel | Synonyms: preacher, preacher man, sermonizer |
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| sermonism | (noun) the conceptualism of Abelard. | - |
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| sermonizer | (noun) someone whose occupation is preaching the gospel | Synonyms: preacher, preacher man, sermoniser |
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| shipworm | (noun) wormlike marine bivalve that bores into wooden piers and ships by means of drill-like shells | Synonyms: teredinid |
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| shitstorm | (noun) A considerable backlash or controversy | - |
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| silkworm | (noun) the commercially bred hairless white caterpillar of the domestic silkworm moth which spins a cocoon that can be processed to yield silk fiber; the principal source of commercial silk | - |
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| (noun) larva of a saturniid moth; spins a large amount of strong silk in constructing its cocoon | Synonyms: giant silkworm, wild wilkworm |
| skirmish | (noun) a minor short-term fight | Synonyms: brush, clash, encounter |
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| skirmisher | (noun) someone who skirmishes (e.g., as a member of a scouting party) | - |
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| slowworm | (noun) small burrowing legless European lizard with tiny eyes; popularly believed to be blind | Synonyms: Anguis fragilis, blindworm |
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| smarm | (noun) excessive but superficial compliments given with affected charm | Synonyms: fulsomeness, unction |
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| smarminess | (noun) smug self-serving earnestness | Synonyms: fulsomeness, oiliness, oleaginousness, unction, unctuousness |
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| snowstorm | (noun) a storm with widespread snowfall accompanied by strong winds | Synonyms: blizzard |
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| spearmint | (noun) common garden herb having clusters of small purplish flowers and yielding an oil used as a flavoring | Synonyms: Mentha spicata |
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| sperm | (noun) the male reproductive cell; the male gamete | Synonyms: sperm cell, spermatozoan, spermatozoon |
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| spermaceti | (noun) a white waxy substance from oil of the sperm whale | - |
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| spermatid | (noun) an immature gamete produced by a spermatocyte; develops into a spermatozoon | - |
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| spermatocele | (noun) a swelling on the epididymis or the testis; usually contains spermatozoa | - |
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| spermatocide | (noun) a contraceptive agent that kills spermatozoa | Synonyms: spermicide |
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| spermatocyte | (noun) a male gametocyte that develops into four spermatids | - |
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| spermatogenesis | (noun) development of spermatozoa | - |
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| spermatophyte | (noun) plant that reproduces by means of seeds not spores | Synonyms: phanerogam, seed plant |
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| spermatozoan | (noun) the male reproductive cell; the male gamete | Synonyms: sperm, sperm cell, spermatozoon |
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| spermatozoid | (noun) a motile male gamete of a plant such as an alga or fern or gymnosperm | Synonyms: antherozoid |
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| spermatozoon | (noun) the male reproductive cell; the male gamete | Synonyms: sperm, sperm cell, spermatozoan |
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