| pyelogram | (noun) an X ray of the kidneys and ureters | - |
|---|
| pyelography | (noun) roentgenography of the kidney and ureters (usually after injection with a radiopaque dye) | - |
|---|
| pyelonephritis | (noun) inflammation of the kidney and its pelvis caused by bacterial infection | - |
|---|
| pyemia | (noun) septicemia caused by pus-forming bacteria being released from an abscess | Synonyms: pyaemia |
|---|
| pygmy | (noun) an unusually small individual | Synonyms: pigmy |
|---|
| pyinma | (noun) relatively hard durable timber from the Queen's crape myrtle; light reddish brown, smooth and lustrous | - |
|---|
| pyjama | (noun) (usually plural) loose-fitting nightclothes worn for sleeping or lounging; have a jacket top and trousers | Synonyms: jammies, pajama, pj's |
|---|
| (noun) a pair of loose trousers tied by a drawstring around the waist; worn by men and women in some Asian countries | Synonyms: pajama |
| pyknosis | (noun) a degenerative state of the cell nucleus | Synonyms: pycnosis |
|---|
| pylon | (noun) a large vertical steel tower supporting high-tension power lines | Synonyms: power pylon |
|---|
| (noun) a tower for guiding pilots or marking the turning point in a race | - |
| pylorus | (noun) a small circular opening between the stomach and the duodenum | - |
|---|
| pyocyanase | (noun) a yellow-green mixture of antibiotics obtained from the bacillus of green pus | - |
|---|
| pyocyanin | (noun) a toxic blue crystalline antibiotic found in green pus | - |
|---|
| pyorrhea | (noun) discharge of pus | Synonyms: pyorrhoea |
|---|
| (noun) chronic periodontitis; purulent inflammation of the teeth sockets | Synonyms: pyorrhea alveolaris, pyorrhoea, Riggs' disease |
| pyorrhoea | (noun) discharge of pus | Synonyms: pyorrhea |
|---|
| (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 |
|---|
| pyralid | (noun) usually tropical slender-bodied long-legged moth whose larvae are crop pests | Synonyms: pyralid moth |
|---|
| 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 | - |
|---|
| (noun) a polyhedron having a polygonal base and triangular sides with a common vertex | - |
| 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 | - |
|---|
| pyre | (noun) wood heaped for burning a dead body as a funeral rite | Synonyms: funeral pyre |
|---|
| pyrectic | (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 | - |
|---|
| (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 |
|---|
| (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 | - |
| pyrexia | (noun) a rise in the temperature of the body; frequently a symptom of infection | Synonyms: febricity, febrility, fever, feverishness |
|---|
| pyridine | (noun) a toxic colorless flammable liquid organic base with a disagreeable odor; usually derived from coal | - |
|---|
| pyridoxal | (noun) a B vitamin that is essential for metabolism of amino acids and starch | Synonyms: adermin, pyridoxamine, pyridoxine, vitamin B6 |
|---|
| pyridoxamine | (noun) a B vitamin that is essential for metabolism of amino acids and starch | Synonyms: adermin, pyridoxal, pyridoxine, vitamin B6 |
|---|
| pyridoxine | (noun) a B vitamin that is essential for metabolism of amino acids and starch | Synonyms: adermin, pyridoxal, pyridoxamine, vitamin B6 |
|---|
| pyrilamine | (noun) antihistamine used to treat rhinitis and pruritus | - |
|---|
| pyrimidine | (noun) a heterocyclic organic compound with a penetrating odor | - |
|---|
| (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 |
|---|
| pyrites | (noun) any of various metallic-looking sulfides (of which pyrite is the commonest) | - |
|---|
| pyrocellulose | (noun) nitrocellulose containing less nitrogen than guncotton; used in making smokeless powder | - |
|---|
| pyrochemistry | (noun) processes for chemical reactions at high temperatures | Synonyms: pyrochemical process |
|---|
| pyroelectricity | (noun) generation of an electric charge on certain crystals (such as tourmaline) as a result of a change in temperature | - |
|---|
| pyrogallol | (noun) a toxic white lustrous crystalline phenol used to treat certain skin diseases and as a photographic developer | Synonyms: pyrogallic acid |
|---|
| pyrogen | (noun) any substance that can cause a rise in body temperature | Synonyms: pyrectic |
|---|
| (noun) any substance characterized by its great flammability | - |
| pyrograph | (noun) a design produced by pyrography | - |
|---|
| pyrographer | (noun) an artist who practices pyrography | - |
|---|
| pyrography | (noun) the act of producing drawings on wood or leather by using heated tools or a fine flame | - |
|---|
| pyrola | (noun) any of several evergreen perennials of the genus Pyrola | Synonyms: wintergreen |
|---|
| pyrolatry | (noun) the worship of fire | Synonyms: fire-worship |
|---|
| pyrolusite | (noun) a mineral consisting of manganese dioxide; an important source of manganese | - |
|---|
| pyrolysis | (noun) transformation of a substance produced by the action of heat | - |
|---|
| pyromancer | (noun) one who practices pyromancy | - |
|---|
| pyromancy | (noun) divination by fire or flames | - |
|---|
| pyromania | (noun) an uncontrollable desire to set fire to things | - |
|---|
| pyromaniac | (noun) a person with a mania for setting things on fire | - |
|---|
| pyrometer | (noun) a thermometer designed to measure high temperatures | - |
|---|
| pyromorphite | (noun) a mineral consisting of lead chloride and phosphate; a minor source of lead | Synonyms: green lead ore |
|---|
| pyrope | (noun) a deep red garnet used as a gemstone | - |
|---|
| pyrophobia | (noun) a morbid fear of fire | - |
|---|
| pyrophosphate | (noun) a salt or ester of pyrophosphoric acid | - |
|---|
| pyrophyllite | (noun) a white or greenish aluminum silicate mineral (resembles talc) | - |
|---|
| pyroscope | (noun) a pyrometer that uses the color of the light emitted by a hot object | Synonyms: optical pyrometer |
|---|
| pyrosis | (noun) a painful burning sensation in the chest caused by gastroesophageal reflux (backflow from the stomach irritating the esophagus); symptomatic of an ulcer or a diaphragmatic hernia or other disorder | Synonyms: heartburn |
|---|
| pyrostat | (noun) a thermostat that operates at very high temperatures | - |
|---|
| pyrotechnic | (noun) (usually plural) a device with an explosive that burns at a low rate and with colored flames; can be used to illuminate areas or send signals etc. | Synonyms: firework |
|---|
| pyrotechnics | (noun) the craft of making fireworks | Synonyms: pyrotechny |
|---|
| (noun) (music) brilliance of display (as in the performance of music) | - |
| pyrotechny | (noun) the craft of making fireworks | Synonyms: pyrotechnics |
|---|
| pyroxene | (noun) any of a group of crystalline silicate mineral common in igneous and metamorphic rocks | - |
|---|
| pyroxylin | (noun) highly flammable nitrocellulose used in making collodion and plastics and lacquers | Synonyms: pyroxyline |
|---|
| pyroxyline | (noun) highly flammable nitrocellulose used in making collodion and plastics and lacquers | Synonyms: pyroxylin |
|---|
| pyrrhic | (noun) an ancient Greek dance imitating the motions of warfare | - |
|---|
| (noun) a metrical unit with unstressed-unstressed syllables | Synonyms: dibrach |
| pyrrhotine | (noun) a brownish iron sulfide mineral (FeS) having weak magnetic properties | Synonyms: magnetic pyrites, pyrrhotite |
|---|
| pyrrhotite | (noun) a brownish iron sulfide mineral (FeS) having weak magnetic properties | Synonyms: magnetic pyrites, pyrrhotine |
|---|
| pyrrhuloxia | (noun) crested grey-and-red bird of southwest United States and Mexico | Synonyms: Pyrrhuloxia sinuata |
|---|
| pythium | (noun) any fungus of the genus Pythium | - |
|---|
| python | (noun) large Old World boas | - |
|---|
| (noun) a soothsaying spirit or a person who is possessed by such a spirit | - |
| pythoness | (noun) a witch with powers of divination | - |
|---|
| pyuria | (noun) presence of white blood cells in the urine; symptom of urinary tract infection | - |
|---|
| pyx | (noun) any receptacle in which wafers for the Eucharist are kept | Synonyms: pix |
|---|
| (noun) a chest in which coins from the mint are held to await assay | Synonyms: pix, pix chest, pyx chest |
| pyxidium | (noun) fruit of such plants as the plantain; a capsule whose upper part falls off when the seeds are released | Synonyms: pyxis |
|---|
| pyxie | (noun) creeping evergreen shrub having narrow overlapping leaves and early white star-shaped flowers; of the pine barrens of New Jersey and the Carolinas | Synonyms: pixie, pixy, Pyxidanthera barbulata |
|---|
| pyxis | (noun) a small box used by ancient Greeks to hold medicines | - |
|---|
| (noun) fruit of such plants as the plantain; a capsule whose upper part falls off when the seeds are released | Synonyms: pyxidium |
| radioscopy | (noun) (radiology) examination of the inner structure of opaque objects using X rays or other penetrating radiation | Synonyms: radiology |
|---|
| radiotherapy | (noun) (medicine) the treatment of disease (especially cancer) by exposure to a radioactive substance | Synonyms: actinotherapy, irradiation, radiation, radiation therapy |
|---|
| rhinoscopy | (noun) examination of the nasal passages (either through the anterior nares or with a rhinoscope through the nasopharynx) | - |
|---|
| scrumpy | (noun) strong cider (as made in western England) | - |
|---|
| sharpy | (noun) a professional card player who makes a living by cheating at card games | Synonyms: card shark, card sharp, card sharper, cardsharp, cardsharper, sharper, sharpie |
|---|
| (noun) an alert and energetic person | Synonyms: busy bee, eager beaver, live wire, sharpie |
| shipyard | (noun) a workplace where ships are built or repaired | - |
|---|
| sigmoidoscopy | (noun) visual examination (with a sigmoidoscope) of the lower third of the colon in a search for polyps | Synonyms: flexible sigmoidoscopy |
|---|
| sleepyhead | (noun) a sleepy person | - |
|---|
| spectroscopy | (noun) the use of spectroscopes to analyze spectra | Synonyms: spectrographic analysis, spectrometry, spectroscopic analysis, spectrum analysis |
|---|
| spy | (noun) (military) a secret agent hired by a state to obtain information about its enemies or by a business to obtain industrial secrets from competitors | Synonyms: undercover agent |
|---|
| (noun) a secret watcher; someone who secretly watches other people | - |
| spyglass | (noun) a small refracting telescope | Synonyms: field glass, glass |
|---|
| spyhole | (noun) a hole (in a door or an oven etc) through which you can peep | Synonyms: eyehole, peephole |
|---|
| spying | (noun) the act of keeping a secret watch for intelligence purposes | Synonyms: undercover work |
|---|
| (noun) keeping a secret or furtive watch | - |
| (noun) the act of detecting something; catching sight of something | Synonyms: catching, detection, espial, spotting |
| spymaster | (noun) someone who directs clandestine intelligence activities | - |
|---|
| spyware | (noun) computer software that obtains information from a user's computer without the user's knowledge or consent | - |
|---|
| steatopygia | (noun) an extreme accumulation of fat on the buttocks | - |
|---|
| stereoscopy | (noun) three-dimensional vision produced by the fusion of two slightly different views of a scene on each retina | Synonyms: stereoscopic vision |
|---|
| sulfapyridine | (noun) sulfa drug derived from pyridine and sulfanilamide | - |
|---|
| telescopy | (noun) the art of making and using telescopes | - |
|---|
| therapy | (noun) (medicine) the act of caring for someone (as by medication or remedial training etc.) | Synonyms: treatment |
|---|
| thermotherapy | (noun) the use of heat to treat a disease or disorder; heating pads or hot compresses or hot-water bottles are used to promote circulation in peripheral vascular disease or to relax tense muscles | - |
|---|
| triphosphopyridine | (noun) a pyridine ring with three phosphorus groups | - |
|---|
| uropygium | (noun) posterior part of a bird's body from which the tail feathers grow | - |
|---|
| wicopy | (noun) deciduous shrub of eastern North America having tough flexible branches and pliable bark and small yellow flowers | Synonyms: Dirca palustris, leatherwood, moose-wood, moosewood, ropebark |
|---|
| zoanthropy | (noun) the delusion that you have assumed the form of an animal | - |
|---|