Pygmy (n.) Hence, a short, insignificant person; a dwarf.
Pygobranchia (n. pl.) A division of opisthobranchiate mollusks having the branchiae in a wreath or group around the anal opening, as in the genus Doris.
Pygopod (n.) One of the Pygopodes.
Pygopod (n.) Any species of serpentiform lizards of the family Pygopodidae, which have rudimentary hind legs near the anal cleft, but lack fore legs.
Pygropodes (n. pl.) A division of swimming birds which includes the grebes, divers, auks, etc., in which the legs are placed far back.
Pygopodous (a.) Of or pertaining to the Pygopodes.
Pygostyle (n.) The plate of bone which forms the posterior end of the vertebral column in most birds; the plowshare bone; the vomer. It is formed by the union of a number of the last caudal vertebrae, and supports the uropigium.
Pyin (n.) An albuminoid constituent of pus, related to mucin, possibly a mixture of substances rather than a single body.
Pyjama (n.) In India and Persia, thin loose trowsers or drawers; in Europe and America, drawers worn at night, or a kind of nightdress with legs.
Pykar (n.) An ancient English fishing boat.
Pylae (pl. ) of Pyla
Pylas (pl. ) of Pyla
Pyla (n.) The passage between the iter and optocoele in the brain.
Pylagore (n.) a deputy of a State at the Amphictyonic council.
Pylangia (pl. ) of Pylangium
Pylangium (n.) The first and undivided part of the aortic trunk in the amphibian heart.
Pylon (n.) A low tower, having a truncated pyramidal form, and flanking an ancient Egyptian gateway.
Pylon (n.) An Egyptian gateway to a large building (with or without flanking towers).
Pyloric (a.) Of, pertaining to, or in the region of, the pylorus; as, the pyloric end of the stomach.
Pylori (pl. ) of Pylorus
Pylorus (n.) The opening from the stomach into the intestine.
Pylorus (n.) A posterior division of the stomach in some invertebrates.
Pyne (n. & v.) See Pine.
Pynoun (n.) A pennant.
Pyocyanin (n.) A blue coloring matter found in the pus from old sores, supposed to be formed through the agency of a species of bacterium (Bacillus pyocyaneus).
Pyogenic (a.) Producing or generating pus.
Pyoid (a.) Of or pertaining to pus; of the nature of, or like, pus.
Pyopneumothorax (n.) Accumulation of air, or other gas, and of pus, in the pleural cavity.
Pyot (n.) The magpie. See Piet.
Pyoxanthose (n.) A greenish yellow crystalline coloring matter found with pyocyanin in pus.
Pyracanth (n.) The evergreen thorn (Crataegus Pyracantha), a shrub native of Europe.
Pyral (a.) Of or pertaining to a pyre.
Pyralid (n.) Any moth of the family Pyralidae. The species are numerous and mostly small, but some of them are very injurious, as the bee moth, meal moth, hop moth, and clover moth.
Pyramid (n.) A solid body standing on a triangular, square, or polygonal base, and terminating in a point at the top; especially, a structure or edifice of this shape.
Pyramid (n.) A solid figure contained by a plane rectilineal figure as base and several triangles which have a common vertex and whose bases are sides of the base.
Pyramid (n.) The game of pool in which the balls are placed in the form of a triangle at spot.
Pyramidal (a.) Of or pertaining to a pyramid; in the form of a a pyramid; pyramidical; as, pyramidal cleavage.
Pyramidal (a.) Same as Tetragonal.
Pyramidal (n.) One of the carpal bones. See Cuneiform, n., 2 (b).
Pyramidally (adv.) Like a pyramid.
Pyramidic (a.) Alt. of Pyramidical
Pyramidical (a.) Of or pertaining to a pyramid; having the form of a pyramid; pyramidal.
Pyramidia (pl. ) of Pyramidion
Pyramidion (n.) The small pyramid which crowns or completes an obelisk.
Pyramidoid (n.) A solid resembling a pyramid; -- called also pyramoid.
Pyramides (pl. ) of Pyramis
Pyramis (n.) A pyramid.
Pyramoid (n.) See Pyramidoid.
Pyrargyrite (n.) Ruby silver; dark red silver ore. It is a sulphide of antimony and silver, occurring in rhombohedral crystals or massive, and is of a dark red or black color with a metallic adamantine luster.
Pyre (n.) A funeral pile; a combustible heap on which the dead are burned; hence, any pile to be burnt.
Pyrenae (pl. ) of Pyrena
Pyrena (n.) A nutlet resembling a seed, or the kernel of a drupe.
Pyrene (n.) One of the less volatile hydrocarbons of coal tar, obtained as a white crystalline substance, C16H10.
Pyrene (n.) Same as Pyrena.
Pyrenean (a.) Of or pertaining to the Pyrenees, a range of mountains separating France and Spain.
Pyrenean (n.) The Pyrenees.
Pyrenoid (n.) A transparent body found in the chromatophores of certain Infusoria.
Pyrethrin (n.) A substance resembling, and isomeric with, ordinary camphor, and extracted from the essential oil of feverfew; -- called also Pyrethrum camphor.
Pyrethrine (n.) An alkaloid extracted from the root of the pellitory of Spain (Anacyclus pyrethrum).
Pyretic (a.) Of or pertaining to fever; febrile.
Pyretology (n.) A discourse or treatise on fevers; the doctrine of fevers.
Pyrexiae (pl. ) of Pyrexia
Pyrexia (n.) The febrile condition.
Pyrexial (a.) Alt. of Pyrexical
Pyrexical (a.) Of or pertaining to fever; feverish.
Pyrgom (n.) A variety of pyroxene; -- called also fassaite.
Pyrheliometer (n.) An instrument for measuring the direct heating effect of the sun's rays.
Pyridic (a.) Related to, or formed from, pyridin or its homologues; as, the pyridic bases.
Pyridine (n.) A nitrogenous base, C5H5N, obtained from the distillation of bone oil or coal tar, and by the decomposition of certain alkaloids, as a colorless liquid with a peculiar pungent odor. It is the nucleus of a large number of organic substances, among which several vegetable alkaloids, as nicotine and certain of the ptomaines, may be mentioned. See Lutidine.
Pyridyl (n.) A hypothetical radical, C5H4N, regarded as the essential residue of pyridine, and analogous to phenyl.
Pyriform (a.) Having the form of a pear; pear-shaped.
Pyritaceous (a.) Of or pertaining to pyrites. See Pyritic.
Pyrites (pl. ) of Pyrite
Pyrite (n.) A common mineral of a pale brass-yellow color and brilliant metallic luster, crystallizing in the isometric system; iron pyrites; iron disulphide.
Pyrites (n.) A name given to a number of metallic minerals, sulphides of iron, copper, cobalt, nickel, and tin, of a white or yellowish color.
Pyritic (a.) Alt. of Pyritical
Pyritical (a.) Of or pertaining to pyrites; consisting of, or resembling, pyrites.
Pyritiferous (a.) Containing or producing pyrites.
Pyritize (v. t.) To convert into pyrites.
Pyritohedral (a.) Like pyrites in hemihedral form.
Pyritohedron (n.) The pentagonal dodecahedron, a common form of pyrite.
Pyritoid (n.) Pyritohedron.
Pyritology (n.) The science of blowpipe analysis.
Pyritous (a.) Pyritic.
Pyro- () Alt. of Pyr-
Pyr- () Combining forms designating fire or heat; specifically (Chem.), used to imply an actual or theoretical derivative by the action of heat; as in pyrophosphoric, pyrosulphuric, pyrotartaric, pyrotungstic, etc.
Pyro (n.) Abbreviation of pyrogallic acid.
Pyroacetic (a.) Pertaining to, and designating, a substance (acetone) obtained by the distillation of the acetates. It is now called also pyroacetic ether, and formerly was called pyroacetic spirit.
Pyroacid (n.) An acid obtained by sybjecting another acid to the action of heat. Cf. Pyro-.
Pyroantimonate (n.) A salt of pyroantimonic acid.
Pyroantimonic (a.) Pertaining to, or designating, an acid of antimony analogous to pyrophosphoric acid.
Pyroarsenate (n.) A salt of pyroarsenic acid.
Pyroarsenic (a.) Pertaining to or designating, an acid of arsenic analogous to pyrophosphoric acid.
Pyroborate (n.) A salt of pyroboric acid.
Pyroboric (a.) Pertaining to derived from, or designating, an acid, H2B4O7 (called also tetraboric acid), which is the acid ingredient of ordinary borax, and is obtained by heating boric acid.
Pyrocatechin (n.) A white crystalline substance, C6H4(OH)2, of the phenol series, found in various plants; -- so called because first obtained by distillation of gum catechu. Called also catechol, oxyphenol. etc.
Pyrochlore (n.) A niobate of calcium, cerium, and other bases, occurring usually in octahedrons of a yellowish or brownish color and resinous luster; -- so called from its becoming grass-green on being subjected to heat under the blowpipe.
Pyrocitric (a.) Pertaining to, or designating, any one of three acids obtained by the distillation of citric acid, and called respectively citraconic, itaconic, and mesaconic acid.
Purocoll (n.) A yellow crystalline substance allied to pyrrol, obtained by the distillation of gelatin.
Pyroelectric (a.) Pertaining to, or dependent on, pyroelectricity; receiving electric polarity when heated.