| microcopy | (verb) photocopy printed or other graphic matter so that it is reduced in size | - |
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| micropylar | (adjective) of or relating to a micropyle | - |
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| micropyle | (noun) minute opening in the wall of an ovule through which the pollen tube enters | - |
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| microscopy | (noun) research with the use of microscopes | - |
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| misanthropy | (noun) a disposition to dislike and mistrust other people | - |
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| (noun) hatred of mankind | - |
| nappy | (adjective) (of hair) in small tight curls | Synonyms: crisp, frizzly, frizzy, kinky |
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| (noun) garment consisting of a folded cloth drawn up between the legs and fastened at the waist; worn by infants to catch excrement | Synonyms: diaper, napkin |
| nippy | (adjective) pleasantly cold and invigorating | Synonyms: crisp, frosty, nipping, snappy |
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| (adjective) a sharp biting taste | - |
| occupy | (verb) consume all of one's attention or time | Synonyms: absorb, engage, engross |
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| (verb) march aggressively into another's territory by military force for the purposes of conquest and occupation | Synonyms: invade |
| (verb) require (time or space) | Synonyms: take, use up |
| (verb) keep busy with | Synonyms: busy |
| (verb) assume, as of positions or roles | Synonyms: fill, take |
| (verb) live (in a certain place) | Synonyms: lodge in, reside |
| (verb) occupy the whole of | Synonyms: fill |
| (verb) be on the mind of | Synonyms: concern, interest, worry |
| ophthalmoscopy | (noun) examination of the interior of an eye using an ophthalmoscope | - |
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| orthoepy | (noun) a term formerly used for the part of phonology that dealt with the `correct' pronunciation of words and its relation to `correct' orthography | - |
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| (noun) the way a word or a language is customarily spoken | Synonyms: pronunciation |
| papyrus | (noun) a document written on papyrus | - |
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| (noun) tall sedge of the Nile valley yielding fiber that served many purposes in historic times | Synonyms: Cyperus papyrus, Egyptian paper reed, Egyptian paper rush, paper plant, paper rush |
| (noun) paper made from the papyrus plant by cutting it in strips and pressing it flat; used by ancient Egyptians and Greeks and Romans | - |
| parthenocarpy | (noun) (botany) the development of a fruit without fertilization or seeds | - |
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| peppy | (adjective) marked by lively action | Synonyms: bouncing, bouncy, spirited, zippy |
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| phenazopyridine | (noun) analgesic (trade name Pyridium) used to treat urinary tract infections | Synonyms: Pyridium |
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| philanthropy | (noun) voluntary promotion of human welfare | Synonyms: philanthropic gift |
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| photocopy | (noun) a photographic copy of written or printed or graphic work | - |
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| (verb) reproduce by xerography | Synonyms: run off, xerox |
| phototherapy | (noun) the use of strong light to treat acne or hyperbilirubinemia of the newborn | - |
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| physiotherapy | (noun) therapy that uses physical agents: exercise and massage and other modalities | Synonyms: physiatrics, physical therapy |
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| phytotherapy | (noun) the use of plants or plant extracts for medicinal purposes (especially plants that are not part of the normal diet) | Synonyms: botanical medicine, herbal therapy |
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| polypropylene | (noun) a polymer of propylene used as a thermoplastic molding material | Synonyms: polypropene |
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| poppy | (noun) annual or biennial or perennial herbs having showy flowers | - |
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| poppycock | (noun) senseless talk | Synonyms: hooey, stuff, stuff and nonsense |
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| preoccupy | (verb) engage or engross the interest or attention of beforehand or occupy urgently or obsessively | - |
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| (verb) occupy or take possession of beforehand or before another or appropriate for use in advance | - |
| proctoscopy | (noun) visual examination of the rectum and the end of the colon by means of a proctoscope | - |
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| propyl | (noun) the monovalent organic group C3H7- obtained from propane | Synonyms: propyl group, propyl radical |
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| propylene | (noun) a flammable gas obtained by cracking petroleum; used in organic synthesis | Synonyms: propene |
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| propylthiouracil | (noun) a crystalline compound used as an antithyroid drug in the treatment of goiter | - |
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| psychotherapy | (noun) the treatment of mental or emotional problems by psychological means | - |
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| (noun) the branch of psychiatry concerned with psychological methods | Synonyms: mental hygiene, psychotherapeutics |
| pulpy | (adjective) like a pulp or overripe; not having stiffness | Synonyms: squashy |
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| puppy | (noun) a young dog | - |
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| (noun) an inexperienced young person | Synonyms: pup |
| puppyish | (adjective) characteristic of a puppy | Synonyms: puppylike |
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| puppylike | (adjective) characteristic of a puppy | Synonyms: puppyish |
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| pya | (noun) 100 pyas equal 1 kyat in Myanmar | - |
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| pyaemia | (noun) septicemia caused by pus-forming bacteria being released from an abscess | Synonyms: pyemia |
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| pyaemic | (adjective) of or relating to pyemia | Synonyms: pyemic |
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| pycnidium | (noun) flask-shaped asexual structure containing conidia | - |
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| pycnodysostosis | (noun) a form of dwarfism accompanied by fragile bones and bad teeth | - |
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| pycnogonid | (noun) any of various small spiderlike marine arthropods having small thin bodies and long slender legs | Synonyms: sea spider |
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| pycnometry | (noun) The determination of liquid density by weighing the liquid in a container (pycnometer) of known volume. | - |
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| pycnosis | (noun) a degenerative state of the cell nucleus | Synonyms: pyknosis |
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| pycnotic | (adjective) of or relating to or exhibiting pyknosis | Synonyms: pyknotic |
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| pyelitis | (noun) inflammation of the renal pelvis | - |
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| pyelogram | (noun) an X ray of the kidneys and ureters | - |
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| pyelography | (noun) roentgenography of the kidney and ureters (usually after injection with a radiopaque dye) | - |
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| pyelonephritis | (noun) inflammation of the kidney and its pelvis caused by bacterial infection | - |
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| pyemia | (noun) septicemia caused by pus-forming bacteria being released from an abscess | Synonyms: pyaemia |
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| pyemic | (adjective) of or relating to pyemia | Synonyms: pyaemic |
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| pygmy | (noun) an unusually small individual | Synonyms: pigmy |
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| pyinma | (noun) relatively hard durable timber from the Queen's crape myrtle; light reddish brown, smooth and lustrous | - |
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| pyjama | (noun) (usually plural) loose-fitting nightclothes worn for sleeping or lounging; have a jacket top and trousers | Synonyms: jammies, pajama, pj's |
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| (noun) a pair of loose trousers tied by a drawstring around the waist; worn by men and women in some Asian countries | Synonyms: pajama |
| pyknic | (adjective) having a squat and fleshy build | Synonyms: endomorphic |
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| pyknosis | (noun) a degenerative state of the cell nucleus | Synonyms: pycnosis |
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| pyknotic | (adjective) of or relating to or exhibiting pyknosis | Synonyms: pycnotic |
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| pylon | (noun) a large vertical steel tower supporting high-tension power lines | Synonyms: power pylon |
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| (noun) a tower for guiding pilots or marking the turning point in a race | - |
| pyloric | (adjective) relating to or near the pylorus | - |
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| pylorus | (noun) a small circular opening between the stomach and the duodenum | - |
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| pyocyanase | (noun) a yellow-green mixture of antibiotics obtained from the bacillus of green pus | - |
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| pyocyanin | (noun) a toxic blue crystalline antibiotic found in green pus | - |
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| pyogenic | (adjective) producing pus | - |
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| pyorrhea | (noun) discharge of pus | Synonyms: pyorrhoea |
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| (noun) chronic periodontitis; purulent inflammation of the teeth sockets | Synonyms: pyorrhea alveolaris, pyorrhoea, Riggs' disease |
| pyorrhoea | (noun) discharge of pus | Synonyms: pyorrhea |
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| (noun) chronic periodontitis; purulent inflammation of the teeth sockets | Synonyms: pyorrhea, pyorrhea alveolaris, Riggs' disease |
| pyracanth | (noun) any of various thorny shrubs of the genus Pyracantha bearing small white flowers followed by hard red or orange-red berries | Synonyms: fire thorn, firethorn, Pyracantha |
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| pyralid | (noun) usually tropical slender-bodied long-legged moth whose larvae are crop pests | Synonyms: pyralid moth |
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| pyramid | (noun) (stock market) a series of transactions in which the speculator increases his holdings by using the rising market value of those holdings as margin for further purchases | - |
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| (noun) a polyhedron having a polygonal base and triangular sides with a common vertex | - |
| (verb) increase rapidly and progressively step by step on a broad base | - |
| (verb) arrange or build up as if on the base of a pyramid | - |
| (verb) enlarge one's holdings on an exchange on a continued rise by using paper profits as margin to buy additional amounts | - |
| (verb) use or deal in (as of stock or commercial transaction) in a pyramid deal | - |
| pyramidal | (adjective) resembling a pyramid | Synonyms: pyramidic, pyramidical |
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| pyramidic | (adjective) resembling a pyramid | Synonyms: pyramidal, pyramidical |
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| pyramidical | (adjective) resembling a pyramid | Synonyms: pyramidal, pyramidic |
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| pyramidically | (adverb) in a pyramidal manner or shape | - |
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| pyramiding | (noun) a fraudulent business practice involving some form of pyramid scheme e.g., the chain of distribution is artificially expanded by an excessive number of distributors selling to other distributors at progressively higher wholesale prices until retail prices are unnecessarily inflated | - |
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| pyre | (noun) wood heaped for burning a dead body as a funeral rite | Synonyms: funeral pyre |
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| pyrectic | (adjective) having or causing fever | - |
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| (noun) any substance that can cause a rise in body temperature | Synonyms: pyrogen |
| pyrene | (noun) the small hard nutlet of a drupe or drupelet; the seed and the hard endocarp that surrounds it | - |
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| (noun) a pale yellow crystalline hydrocarbon C16H10 extracted from coal tar | - |
| pyrethrum | (noun) spring-flowering garden perennial of Asiatic origin having finely divided aromatic leaves and white to pink-purple flowers; source of an insecticide; sometimes placed in genus Chrysanthemum | Synonyms: Chrysanthemum coccineum, painted daisy, Tanacetum coccineum |
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| (noun) white-flowered pyrethrum of Balkan area whose pinnate leaves are white and silky-hairy below; source of an insecticide; sometimes placed in genus Chrysanthemum | Synonyms: Chrysanthemum cinerariifolium, Dalmatia pyrethrum, Dalmatian pyrethrum, Tanacetum cinerariifolium |
| (noun) made of dried flower heads of pyrethrum plants | - |
| pyretic | (adjective) causing fever | - |
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| pyrexia | (noun) a rise in the temperature of the body; frequently a symptom of infection | Synonyms: febricity, febrility, fever, feverishness |
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| pyridine | (noun) a toxic colorless flammable liquid organic base with a disagreeable odor; usually derived from coal | - |
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| pyridoxal | (noun) a B vitamin that is essential for metabolism of amino acids and starch | Synonyms: adermin, pyridoxamine, pyridoxine, vitamin B6 |
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| pyridoxamine | (noun) a B vitamin that is essential for metabolism of amino acids and starch | Synonyms: adermin, pyridoxal, pyridoxine, vitamin B6 |
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| pyridoxine | (noun) a B vitamin that is essential for metabolism of amino acids and starch | Synonyms: adermin, pyridoxal, pyridoxamine, vitamin B6 |
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| pyrilamine | (noun) antihistamine used to treat rhinitis and pruritus | - |
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| pyrimidine | (noun) a heterocyclic organic compound with a penetrating odor | - |
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| (noun) any of several basic compounds derived from pyrimidine | - |
| pyrite | (noun) a common mineral (iron disulfide) that has a pale yellow color | Synonyms: fool's gold, iron pyrite |
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| pyrites | (noun) any of various metallic-looking sulfides (of which pyrite is the commonest) | - |
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| pyrocellulose | (noun) nitrocellulose containing less nitrogen than guncotton; used in making smokeless powder | - |
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| pyrochemical | (adjective) of or relating to or produced by chemical reactions at high temperatures | - |
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| pyrochemistry | (noun) processes for chemical reactions at high temperatures | Synonyms: pyrochemical process |
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| pyroelectric | (adjective) relating to or exhibiting pyroelectricity | Synonyms: pyroelectrical |
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| pyroelectrical | (adjective) relating to or exhibiting pyroelectricity | Synonyms: pyroelectric |
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| pyroelectricity | (noun) generation of an electric charge on certain crystals (such as tourmaline) as a result of a change in temperature | - |
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| pyrogallic | (adjective) of or relating to pyrogallol | - |
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| pyrogallol | (noun) a toxic white lustrous crystalline phenol used to treat certain skin diseases and as a photographic developer | Synonyms: pyrogallic acid |
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| pyrogen | (noun) any substance that can cause a rise in body temperature | Synonyms: pyrectic |
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| (noun) any substance characterized by its great flammability | - |
| pyrogenetic | (adjective) produced by or producing fever | Synonyms: pyrogenic, pyrogenous |
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| pyrogenic | (adjective) produced under conditions involving intense heat | Synonyms: igneous, pyrogenous |
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| (adjective) produced by or producing fever | Synonyms: pyrogenetic, pyrogenous |
| pyrogenous | (adjective) produced under conditions involving intense heat | Synonyms: igneous, pyrogenic |
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| (adjective) produced by or producing fever | Synonyms: pyrogenetic, pyrogenic |
| pyrograph | (noun) a design produced by pyrography | - |
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| pyrographer | (noun) an artist who practices pyrography | - |
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| pyrographic | (adjective) of or relating to or produced by pyrography | - |
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| pyrography | (noun) the act of producing drawings on wood or leather by using heated tools or a fine flame | - |
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| pyrola | (noun) any of several evergreen perennials of the genus Pyrola | Synonyms: wintergreen |
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