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Pyrosmalite
n.
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A mineral, usually of a pale brown or of a gray or grayish green color, consisting chiefly of the hydrous silicate of iron and manganese; -- so called from the odor given off before the blowpipe.
Pyrosome
n.
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Any compound ascidian of the genus Pyrosoma. The pyrosomes form large hollow cylinders, sometimes two or three feet long, which swim at the surface of the sea and are very phosphorescent.
Pyrosulphate
n.
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A salt of pyrosulphuric acid.
Pyrosulphuric
a.
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Pertaining to, or designating, an acid called also disulphuric acid) obtained by distillation of certain sulphates, as a colorless, thick, oily liquid, H2S2O7 resembling sulphuric acid. It is used in the solution of indigo, in the manufacture of alizarin, and in dehydration.
Pyrotartaric
a.
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Pertaining to, or designating, an acid obtained as a white crystalline substance by the distillation of tartaric acid.
Pyrotartrate
n.
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A salt of pyrotartaric acid.
Pyrotechnian
n.
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A pyrotechnist.
Pyrotechnic
a.
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Alt. of Pyrotechnical
Pyrotechnical
a.
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Of or pertaining to fireworks, or the art of forming them.
Pyrotechnician
n.
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A pyrotechnist.
Pyrotechnics
n.
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The art of making fireworks; the manufacture and use of fireworks; pyrotechny.
Pyrotechnist
n.
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One skilled in pyrotechny; one who manufactures fireworks.
Pyrotechny
n.
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The use and application of fire in science and the arts.
Pyrotechny
n.
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Same as Pyrotechnics.
Pyrothonide
n.
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A kind of empyreumatic oil produced by the combustion of textures of hemp, linen, or cotton in a copper vessel, -- formerly used as a remedial agent.
Pyrotic
a.
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Caustic. See Caustic.
Pyrotic
n.
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A caustic medicine.
Pyrotritartaric
a.
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Designating an acid which is more commonly called uric acid.
Pyrotungstic
a.
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Polytungstic. See Metatungstic.
Pyrouric
a.
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Pertaining to, or designating, an acid now called cyanuric acid. See Cyanuric.
Pyrovanadic
a.
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Pertaining to, or designating, an acid of vanadium, analogous to pyrophosphoric acid.
Pyroxanthin
n.
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A yellow crystalline hydrocardon extracted from crude wood spirit; -- called also eblanin.
Pyroxene
n.
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A common mineral occurring in monoclinic crystals, with a prismatic angle of nearly 90¡, and also in massive forms which are often laminated. It varies in color from white to dark green and black, and includes many varieties differing in color and composition, as diopside, malacolite, salite, coccolite, augite, etc. They are all silicates of lime and magnesia with sometimes alumina and iron. Pyroxene is an essential constituent of many rocks, especially basic igneous rocks, as basalt, gabbro, etc.
Pyroxenic
a.
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Containing pyroxene; composed chiefly of pyroxene.
Pyroxenite
n.
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A rock consisting essentially of pyroxene.
Pyroxylic
a.
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Derived from wood by distillation; -- formerly used in designating crude wood spirit.
Pyroxylin
n.
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A substance resembling gun cotton in composition and properties, but distinct in that it is more highly nitrified and is soluble in alcohol, ether, etc.; -- called also pyroxyle.
Pyrrhic
a.
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Of or pertaining to an ancient Greek martial dance.
Pyrrhic
a.
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Of or pertaining to a pyrrhic, or to pyrrhics; containing pyrrhic; as, a pyrrhic verse.
Pyrrhic
n.
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An ancient Greek martial dance, to the accompaniment of the flute, its time being very quick.