Definition of mica
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Mica (n.) The name of a group of minerals characterized by highly perfect cleavage, so that they readily separate into very thin leaves, more or less elastic. They differ widely in composition, and vary in color from pale brown or yellow to green or black. The transparent forms are used in lanterns, the doors of stoves, etc., being popularly called isinglass. Formerly called also cat-silver, and glimmer..
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Chemism ::
Chemism (n.) The force exerted between the atoms of elementary substance whereby they unite to form chemical compounds; chemical attaction; affinity; -- sometimes used as a general expression for chemical activity or relationship.
Neurine ::
Neurine (n.) A poisonous organic base (a ptomaine) formed in the decomposition of protagon with boiling baryta water, and in the putrefraction of proteid matter. It was for a long time considered identical with choline, a crystalline body originally obtained from bile. Chemically, however, choline is oxyethyl-trimethyl-ammonium hydroxide, while neurine is vinyl-trimethyl-ammonium hydroxide..
Anthropotomical ::
Anthropotomical (a.) Pertaining to anthropotomy, or the dissection of human bodies..
Gutta-percha ::
Gutta-percha (n.) A concrete juice produced by various trees found in the Malayan archipelago, especially by the Isonandra, / Dichopsis, Gutta. It becomes soft, and unpressible at the tamperature of boiling water, and, on cooling, retains its new shape. It dissolves in oils and ethers, but not in water. In many of its properties it resembles caoutchouc, and it is extensively used for many economical purposes. The Mimusops globosa of Guiana also yields this material..
Diazotize ::
Diazotize (v. t.) To subject to such reactions or processes that diazo compounds, or their derivatives, shall be produced by chemical exchange or substitution..
Inorganic ::
Inorganic (a.) Not organic; without the organs necessary for life; devoid of an organized structure; unorganized; lifeness; inanimate; as, all chemical compounds are inorganic substances..
Moderator ::
Moderator (n.) A mechamical arrangement for regulating motion in a machine, or producing equality of effect..
Saltmouth ::
Saltmouth (n.) A wide-mouthed bottle with glass stopper for holding chemicals, especially crystallized salts..
Economical ::
Economical (a.) Managed with frugality; not marked with waste or extravagance; frugal; -- said of acts; saving; as, an economical use of money or of time..
Foliation ::
Foliation (n.) The property, possessed by some crystalline rocks, of dividing into plates or slabs, which is due to the cleavage structure of one of the constituents, as mica or hornblende. It may sometimes include slaty structure or cleavage, though the latter is usually independent of any mineral constituent, and transverse to the bedding, it having been produced by pressure..
Sphere ::
Sphere (n.) The apparent surface of the heavens, which is assumed to be spherical and everywhere equally distant, in which the heavenly bodies appear to have their places, and on which the various astronomical circles, as of right ascension and declination, the equator, ecliptic, etc., are conceived to be drawn; an ideal geometrical sphere, with the astronomical and geographical circles in their proper positions on it..
Diactinic ::
Diactinic (a.) Capable of transmitting the chemical or actinic rays of light; as, diactinic media..
Slake ::
Slake (a.) To mix with water, so that a true chemical combination shall take place; to slack; as, to slake lime..
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