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One of a large series of amorphous or crystalline substances, occurring very widely distributed in plants, rarely in animals, and regarded as influental agents in the formation and disposition of the sugars. They are frequently of a bitter taste, but, by the action of ferments, or of dilute acids and alkalies, always b…

acid so called; as, glutaric ethers. Glutaric acid, an organic acid obtained as a white crystalline substance, isomeric with pyrotartaric acid; -- called also normal pyrotartaric acid.

n bile in the form of a sodium salt. The acid commonly forms a resinous mass, but can be crystallized in long, white needles.

A crystalline, nitrogenous substance, with a sweet taste, formed from hippuric acid by boiling with hydrochloric acid, and present in bile united with cholic acid. It is also formed from gelatin by decomposition with acids. Chemically, it is amido-acetic acid. Called also glycin, and glycocin.

n many ways, as by the oxidation of glycol, -- whence its name. It is a sirupy, or white crystalline, substance, HO.CH2.CO2H, has the properties both of an alcohol and an acid, and is a type of the hydroxy acids; -- called also hydroxyacetic acid.

A white, crystalline, nitrogenous substance, obtained by the reduction of allantoïn.

An organic base, C6H6N4, produced artificially as a white, crystalline powder, by the action of ammonia on glyoxal.

A glucoside found in licorice root (Glycyrrhiza), in monesia bark (Chrysophyllum), in the root of the walnut, etc., and extracted as a yellow, amorphous powder, of a bittersweet taste.

A white, crystalline, organic base, C3H4N2, produced by the action of ammonia on glyoxal, and forming the origin of a large class of derivatives hence, any one of the series of which glyoxaline is a type; -- called also oxaline.

A white, crystalline, nitrogenous substance, produced by the action of hydroxylamine on glyoxal, and belonging to the class of oximes; also, any one of a group of substances resembling glyoxime proper, and of which it is a type. See Oxime.

A crystalline rock, consisting, like granite, of quartz, feldspar, and mica, but having these materials, especially the mica, arranged in planes, so that it breaks rather easily into coarse slabs or flags. Hornblende sometimes takes the place of the mica, and it is then called hornblendic or syenitic gneiss. Similar va…

a Brazilian tree (Andira araroba) and used as a medicine. It is the material from which chrysarobin is obtained.

s of gold-beating. -- Gold beetle (Zoöl.), any small gold-colored beetle of the family Chrysomelidæ; -- called also golden beetle. -- Gold blocking, printing with gold leaf, as upon a book cover, by means of an engraved block. Knight. -- Gold cloth. See Cloth of gold, under Cloth. -- Gold Coast, a part of the coast…

cup (Bot.), the buttercup. -- Golden eagle (Zoöl.), a large and powerful eagle (Aquila Chrysaëtos) inhabiting Europe, Asia, and North America. It is so called from the brownish yellow tips of the feathers on the head and neck. A dark variety is called the royal eagle; the young in the second year is the ring-tailed ea…

A conspicuous yellow flower, commonly the corn marigold (Chrysanthemum segetum). [This word is variously corrupted into gouland, gools, gowan, etc.]

A plant of several species of the genus Chrysocoma; -- so called from the tufts of yellow flowers which terminate the stems; also, the Ranunculus auricomus, a kind of buttercup.

An instrument for measuring angles, especially the angles of crystals, or the inclination of planes. Contact, or Hand, goniometer, a goniometer having two movable arms (ab, cd), between which (at ab) the faces of the crystals are placed. These arms turn about a fixed point, which is the center of the graduated circle o…

A hydrous oxide of iron, occurring in prismatic crystals, also massive, with a fibrous, reniform, or stalactitic structure. The color varies from yellowish to blackish brown.

to flesh side. -- Grains of paradise, the seeds of a species of amomum. -- grain tin, crystalline tin ore metallic tin smelted with charcoal. -- Grain weevil (Zoöl.), a small red weevil (Sitophilus granarius), which destroys stored wheat and othar grain, by eating out the interior. -- Grain worm (Zoöl.), the larva…

A crystalline, granular rock, consisting of quartz, feldspar, and mica, and usually of a whitish, grayish, or flesh-red color. It differs from gneiss in not having the mica in planes, and therefor in being destitute of a schistose structure.