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Salicylic :: Salicylic (a.) Pertaining to, derived from, or designating, an acid formerly obtained by fusing salicin with potassium hydroxide, and now made in large quantities from phenol (carbolic acid) by the action of carbon dioxide on heated sodium phenolate. It is a white crystalline substance. It is used as an antiseptic, and in its salts in the treatment of rheumatism. Called also hydroxybenzoic acid..

Primum Mobile :: Primum mobile () In the Ptolemaic system, the outermost of the revolving concentric spheres constituting the universe, the motion of which was supposed to carry with it all the inclosed spheres with their planets in a daily revolution from east to west. See Crystalline heavens, under Crystalline..

Parameter :: Parameter (n.) The ratio of the three crystallographic axes which determines the position of any plane; also, the fundamental axial ratio for a given species..

Pebble :: Pebble (n.) Transparent and colorless rock crystal; as, Brazilian pebble; -- so called by opticians..

Furfurine :: Furfurine (n.) A white, crystalline base, obtained indirectly from furfurol..

Isuret :: Isuret (n.) An artificial nitrogenous base, isomeric with urea, and forming a white crystalline substance; -- called also isuretine..

Lazulite :: Lazulite (n.) A mineral of a light indigo-blue color, occurring in small masses, or in monoclinic crystals; blue spar. It is a hydrous phosphate of alumina and magnesia..

Laurin :: Laurin (n.) A white crystalline substance extracted from the fruit of the bay (Laurus nobilis), and consisting of a complex mixture of glycerin ethers of several organic acids..

Bezel :: Bezel (n.) The rim which encompasses and fastens a jewel or other object, as the crystal of a watch, in the cavity in which it is set..

Haematexylin :: Haematexylin (n.) The coloring principle of logwood. It is obtained as a yellow crystalline substance, C16H14O6, with a sweetish taste. Formerly called also hematin..

Lecanoric :: Lecanoric (a.) Pertaining to, or designating, an organic acid which is obtained from several varieties of lichen (Lecanora, Roccella, etc.), as a white, crystalline substance, and is called also orsellic, / diorsellinic acid, lecanorin, etc..

Imesatin :: Imesatin (n.) A dark yellow, crystalline substance, obtained by the action of ammonia on isatin..

Semicrystalline :: Semicrystalline (a.) Half crystalline; -- said of certain cruptive rocks composed partly of crystalline, partly of amorphous matter..

Telerythin :: Telerythin (n.) A red crystalline compound related to, or produced from, erythrin. So called because regarded as the end of the series of erythrin compounds..

Onocerin :: Onocerin (n.) A white crystalline waxy substance extracted from the root of the leguminous plant Ononis spinosa.

Agate :: Agate (n.) A semipellucid, uncrystallized variety of quartz, presenting various tints in the same specimen. Its colors are delicately arranged in stripes or bands, or blended in clouds..

Malonic :: Malonic (a.) Pertaining to, or designating, an acid produced artifically as a white crystalline substance, CH2.(CO2H)2, and so called because obtained by the oxidation of malic acid..

Boracite :: Boracite (n.) A mineral of a white or gray color occurring massive and in isometric crystals; in composition it is a magnesium borate with magnesium chloride.

Millerite :: Millerite (n.) A sulphide of nickel, commonly occurring in delicate capillary crystals, also in incrustations of a bronze yellow; -- sometimes called hair pyrites..

Hydrosalt :: Hydrosalt (n.) A hydrous salt; a salt combined with water of hydration or crystallization.

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