Antipyrine :: Antipyrine (n.) An artificial alkaloid, believed to be efficient in abating fever..

Arsenopyrite :: Arsenopyrite (n.) A mineral of a tin-white color and metallic luster, containing arsenic, sulphur, and iron; -- also called arsenical pyrites and mispickel..

Chalcopyrite :: Chalcopyrite (n.) Copper pyrites, or yellow copper ore; a common ore of copper, containing copper, iron, and sulphur. It occurs massive and in tetragonal crystals of a bright brass yellow color..

Copyright :: Copyright (n.) The right of an author or his assignee, under statute, to print and publish his literary or artistic work, exclusively of all other persons. This right may be had in maps, charts, engravings, plays, and musical compositions, as well as in books..

Copyright :: Copyright (v. t.) To secure a copyright on.

Dipyridil :: Dipyridil (n.) A crystalline nitrogenous base, C10H8N2, obtained by the reduction of pyridine..

Dipyridine :: Dipyridine (n.) A polymeric form of pyridine, C10H10N2, obtained as a colorless oil by the action of sodium on pyridine..

Empyrical :: Empyrical (a.) Containing the combustible principle of coal.

Lampyrine :: Lampyrine (n.) An insect of the genus Lampyris, or family Lampyridae. See Lampyris..

Lampyris :: Lampyris (n.) A genus of coleopterous insects, including the glowworms..

Leucopyrite :: Leucopyrite (n.) A mineral of a color between white and steel-gray, with a metallic luster, and consisting chiefly of arsenic and iron..

Melampyrin :: Melampyrin (n.) Alt. of Melampyrit.

Melampyrite :: Melampyrite (n.) The saccharine substance dulcite; -- so called because found in the leaves of cowwheat (Melampyrum). See Dulcite.

Papyri :: Papyri (pl. ) of Papyru.

Papyrine :: Papyrine (n.) Imitation parchment, made by soaking unsized paper in dilute sulphuric acid..

Pyridic :: Pyridic (a.) Related to, or formed from, pyridin or its homologues; as, the pyridic bases..

Pyridine :: 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 :: Pyridyl (n.) A hypothetical radical, C5H4N, regarded as the essential residue of pyridine, and analogous to phenyl..

Pyriform :: Pyriform (a.) Having the form of a pear; pear-shaped.

Pyritaceous :: Pyritaceous (a.) Of or pertaining to pyrites. See Pyritic.

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 :: Pyrites (pl. ) of Pyrit.

Pyrites :: 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 :: Pyritic (a.) Alt. of Pyritica.

Pyritical :: Pyritical (a.) Of or pertaining to pyrites; consisting of, or resembling, pyrites..

Pyritiferous :: Pyritiferous (a.) Containing or producing pyrites.

Pyritize :: Pyritize (v. t.) To convert into pyrites.

Pyritohedral :: Pyritohedral (a.) Like pyrites in hemihedral form.

Pyritohedron :: Pyritohedron (n.) The pentagonal dodecahedron, a common form of pyrite..

Pyritoid :: Pyritoid (n.) Pyritohedron.

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