Search the Dictionary

dom. Vegetable alkali (Chem.), an alkaloid. -- Vegetable brimstone. (Bot.) See Vegetable sulphur, below. -- Vegetable butter (Bot.), a name of several kinds of concrete vegetable oil; as that produced by the Indian butter tree, the African shea tree, and the Pentadesma butyracea, a tree of the order Guttiferæ, also A…

ral occurring in tetragonal crystals, and also massive, of a brown to green color, rarely sulphur yellow and blue. It is a silicate of alumina and lime with some iron magnesia, and is common at Vesuvius. Also called idocrase.

Sulphuric acid; -- called also oil of vitriol. So called because first made by the distillation of green vitriol. See Sulphuric acid, under Sulphuric. [Colloq.] Blue vitriol. See under Blue. -- Green vitriol, ferrous sulphate; copperas. See under Green. -- Oil of vitriol, sulphuric or vitriolic acid; -- popularly so…

To convert into, or change to, a vitriol; to make into sulphuric acid or a sulphate.

Changed into a vitriol or a sulphate, or subjected to the action of sulphuric acid or of a sulphate; as, vitriolated potash, i. e., potassium sulphate.

vitriol; vitriolous; as, a vitriolic taste. Cf. Vitriol. Vitriolic acid (Old Chem.), (a) sulphuric acid. See Vitriol (b). [Colloq.]

orm of lava, produced by sudden cooling; obsidian. See Obsidian. -- Volcanic mud, fetid, sulphurous mud discharged by a volcano. -- Volcanic rocks, rocks which have been produced from the discharges of volcanic matter, as the various kinds of basalt, trachyte, scoria, obsidian, etc., whether compact, scoriaceous, or…

mountain or hill, usually more or less conical in form, from which lava, cinders, steam, sulphur gases, and the like, are ejected; -- often popularly called a burning mountain.

ynamite composed of nitroglycerin (30 parts), sodium nitrate (52.5), charcoal (10.5), and sulphur (7), used in mining and blasting.

Hard rubber produced by vulcanizing with a large proportion of sulphur.

c, gutta-percha, or the like, greater elasticity, durability, or hardness by heating with sulphur under pressure.

American water thrush. See Water thrush. -- Wood wagtail, an Asiatic wagtail; (Calobates sulphurea) having a slender bill and short legs.

on long, slender pedicels forming a light, open panicle. -- Witch meal (Bot.), vegetable sulphur. See under Vegetable.

lor is yellow. It includes the common small yellow butterflies. Called also redhorns, and sulphurs. See Sulphur.