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Consisting of, or resembling, grains; as, a granular substance. Granular limestone, crystalline limestone, or marble, having a granular structure.

Consisting of, or resembling, grains; crystallized in grains; granular; as, granulated sugar.

The act or process of forming or crystallizing into grains; as, the granulation of powder and sugar.

A suffix signifying something written, a writing; also, a writer; as autograph, crystograph, telegraph, photograph.

Native carbon in hexagonal crystals, also foliated or granular massive, of black color and metallic luster, and so soft as to leave a trace on paper. It is used for pencils (improperly called lead pencils), for crucibles, and as a lubricator, etc. Often called plumbago or black lead. Graphite battery (Elec.), a voltaic…

oratum. Wire grass, valuable in pastures. Poa compressa. Wood grass, Indian grass, hay. Chrysopogon nutans.

, and has become very abundant there. -- Green salt of Magnus (Old Chem.), a dark green crystalline salt, consisting of ammonia united with certain chlorides of platinum. -- Green sand (Founding) molding sand used for a mold while slightly damp, and not dried before the cast is made. -- Green sea (Naut.), a wave tha…

Native cadmium sulphide, a mineral occurring in yellow hexagonal crystals, also as an earthy incrustation.

A crystalline rock consisting of quarts and mica, common in the tin regions of Cornwall and Saxony.

d. -- Ground mass (Geol.), the fine-grained or glassy base of a rock, in which distinct crystals of its constituents are embedded. -- Ground parrakeet (Zoöl.), one of several Australian parrakeets, of the genera Callipsittacus and Geopsittacus, which live mainly upon the ground. -- Ground pearl (Zoöl.), an insect of…

A crystalline substance (C5H5N5O) contained in guano. It is also a constituent of the liver, pancreas, and other glands in mammals.

of lime (calcium). When calcined, it forms plaster of Paris. Selenite is a transparent, crystalline variety; alabaster, a fine, white, massive variety.

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

red, round the sun or moon, and supposed to be caused by the refraction of light through crystals of ice in the atmosphere. Connected with halos there are often white bands, crosses, or arches, resulting from the same atmospheric conditions.

An instrument for measuring the forms and angles of salts and crystals; a goniometer.

ing harmaline (in the Peganum harmala), and obtained from it by oxidation. It is a white crystalline substance.

A hydrous silicate of alumina and baryta, occurring usually in white cruciform crystals; cross-stone.

substance found in the root of the elecampane (Inula helenium), and extracted as a white crystalline or oily material, with a slightly bitter taste.

A glucoside obtained as a white crystalline substance by partial oxidation of salicin, from a willow (Salix Helix of Linnæus.)

coside accompanying helleborin in several species of hellebore, and extracted as a white crystalline substance with a bittersweet taste. It has a strong action on the heart, resembling digitalin.