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A characteristic crystalline substance, obtained from oil of bitter almonds.

ng also used as a general term for the whole species). Amphibole is a constituent of many crystalline rocks, as syenite, diorite, most varieties of trachyte, etc. See Hornblende.

A glucoside extracted from bitter almonds as a white, crystalline substance.

A crystalline compound used as an antipyretic and analgesic, employed chiefly in rheumatism and neuralgia. It is a complex derivative of quinoline.

An anomalous state of refraction caused by the absence of the crystalline lens, as after operations for cataract. The remedy is the use of powerful convex lenses. Dunglison.

A crystalline alkaloid obtained from morphia. It is a powerful emetic.

humor (Anat.), one the humors of the eye; a limpid fluid, occupying the space between the crystalline lens and the cornea. (See Eye.) -- Aqueous rocks (Geol.), those which are deposited from water and lie in strata, as opposed to volcanic rocks, which are of igneous origin; -- called also sedimentary rocks.…

identical in composition with calcite or carbonate of lime, but differing from it in its crystalline form and some of its physical characters.

A white crystalline compound of acetyl and salicylic acid used as a drug for the salicylic acid liberated from it in the intestines.

A hydrous carbonate of copper and zinc, found in pale green or blue crystalline aggregations. It yields a kind of brass on reduction.

A crystalline globulin, contained in oat kernels, very similar in composition to excelsin, but different in reactions and crystalline form.

A white, crystalline substance,

The ground mass of a rock, especially if not distinctly crystalline.

Said of crystalline rocks which contain a relatively low percentage of silica, as basalt. Basic salt (Chem.), a salt formed from a base or hydroxide by the partial replacement of its hydrogen by a negative or acid element or radical.

om sea water, by evaporation in shallow pits or basins, by the heat of the sun; the large crystalline salt of commerce. Bacon. Ure.

Minute acicular or dendritic crystalline forms sometimes observed in glassy volcanic rocks.

A transparent crystalline substance,

A transparent crystalline substance, C6H5.CO.NH2, obtained by the action of ammonia upon chloride of benzoyl, as also by several other reactions with benzoyl compounds.

A yellowish crystalline substance, C6H5.CO.CO.C6H5, formed from benzoin by the action of oxidizing agents, and consisting of a doubled benzoyl radical.

A white crystalline substance, C14H12O2, obtained from benzoic aldehyde and some other sources.