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agent employed in etching glass, and is preserved only in vessels of platinum, lead, caoutchouc, or gutta-percha.

proof impression from an engraved plate, taken on India paper. -- India rubber. See Caoutchouc. -- India-rubber tree (Bot.), any tree yielding caoutchouc, but especially the East Indian Ficus elastica, often cultivated for its large, shining, elliptical leaves.

. See Caoutchouc.

An oily, volatile hydrocarbon, obtained by the distillation of caoutchouc or guttaipercha.C5H8 -- unsaturated, and used to make synthetic rubber by polymerization. In organic chemistry, viewed conceptually as the building block of the terpene series of hydrocarbons

The cheek; the jaw. [Written also jole, choule, chowle, and geoule.] Cheek by jowl, with the cheeks close together; side by side; in close proximity. "I will go with three cheek by jole." Shak. " Sits cheek by jowl." Dryden.

A caoutchouc like substance obtained from the milky juice of the East Indian Euphorbia Kattimundoo. It is used as a cement.

The Cornish chough. See under Chough. [Prov. Eng. & Scot.]

iples of the plants, whether aromatic, bitter, or acid, and in many instances yields caoutchouc upon coagulation.

A white, amorphous, tenacious substance resembling caoutchouc, and obtained as an insoluble residue of mastic.

r for coloring purposes. -- Mineral candle, a candle made of paraffine. -- Mineral caoutchouc, an elastic mineral pitch, a variety of bitumen, resembling caoutchouc in elasticity and softness. See Caoutchouc, and Elaterite. -- Mineral chameleon (Chem.) See Chameleon mineral, under Chameleon. -- Mineral charcoal. Se…

(a) (Bot.) A tall, liliaceous herb (Phormium tenax), having very long, sword-shaped, distichous leaves which furnish a fine, strong fiber very valuable for cordage and the like. (b) The fiber itself. -- New Zealand tea (Bot.), a myrtaceous shrub (Leptospermum scoparium) of New Zealand and Australia, the leaves of whic…

The caoutchouc obtained from the South American euphorbiaceous tree Hevea brasiliensis, hence called the Pará rubber tree, from the Brazilian river and seaport named Pará; also, the similar product of other species of Hevea. It is usually exported in flat round cakes, and is a chief variety of commercial India rubber.…

The California salmon (Oncorhynchus choicha); -- called also chouicha, king salmon, chinnook salmon, and Sacramento salmon. It is of great commercial importance. [Written also quinnet.]

Arranged in five vertical rows; pentastichous. Gray.

An eraser, usually made of caoutchouc.

The chough. [Ireland]

See Cornish chough, under Chough.

for a euphorbiaceous genus (Hevea) of South American trees, the principal source of caoutchouc.

ants related to the banana, found at the Cape of Good Hope. They have rigid glaucous distichous leaves, and peculiar richly colored flowers.

To combine or impregnate with sulphur or any of its compounds; as, to sulphurize caoutchouc in vulcanizing.