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A bitter white crystalline alkaloid extracted from the seeds of the castor-oil plant.

A Mexican liliaceous plant (Schænocaulon officinale); also, its seeds, which contain the alkaloid veratrine. It was formerly used in medicine as an emetic and purgative.

An alkaloid occuring in the seeds of mustard. It is extracted, in combination with sulphocyanic acid, as a white crystalline substance, having a hot, bitter taste. When sinapine is isolated it is unstable and undergoes decomposition.

An alkaloid produced by the action of hydrochloric acid on solanidine, as a tasteless yellow crystalline substance.

An alkaloid produced by the decomposition of solanine, as a white crystalline substance having a harsh bitter taste.

A poisonous alkaloid glucoside extracted from the berries of common nightshade (Solanum nigrum), and of bittersweet, and from potato sprouts, as a white crystalline substance having an acrid, burning taste; -- called also solonia, and solanina.

A narcotic alkaloid extracted from the tops of the common broom (Cytisus scoparius, formerly Spartium scoparium), as a colorless oily liquid of aniline-like odor and very bitter taste.

A very poisonous alkaloid resembling brucine, obtained from various species of plants, especially from species of Loganiaceæ, as from the seeds of the St. Ignatius bean (Strychnos Ignatia) and from nux vomica. It is obtained as a white crystalline substance, having a very bitter acrid taste, and is employed in medicine…

A poisonous alkaloid of bitter taste extracted from the leaves and seeds of the European yew (Taxus baccata). Called also taxia.C35H47NO10

An artificial alkaloid of the quinoline series, obtained as a white crystalline substance, C10H13NO, whose salts are valuable as antipyretics; -- so called from the green color produced in its solution by certain oxidizing agents.

A poisonous alkaloid, C19H21NO3, found in opium in small quantities, having a sharp, astringent taste, and a tetanic action resembling that of strychnine.

An alkaloidal ureide, C7H8N4O2, homologous with and resembling caffeine, produced artificially, and also extracted from cacao and chocolate (from Theobroma Cacao) as a bitter white crystalline substance; -- called also dimethyl xanthine.

An artificial alkaloid of complex composition, resembling thalline and used as an antipyretic, -- whence its name.

Any one of a series of artificial ethereal salts derived from the alkaloidal base tropine.

Of, pertaining to, or designating, an acid obtained from atropine and certain other alkaloids, as a white crystalline substance slightly soluble in water.

An alkaloid, C8H13N, obtained by the chemical dehydration of tropine, as an oily liquid having a coninelike odor.

A white crystalline alkaloid, C8H15NO, produced by decomposing atropine.

, produced by heating valeric aldehyde with ammonia. It is probably related to the conine alkaloids.

isting of, or comprising, plants; as, the vegetable kingdom. 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 Pen…

A yellowish amorphous alkaloid extracted from the rootstock of Veratrum album.