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A white, crystalline glucoside, of an irritating taste, extracted from the convallaria or lily of the valley.

A glucoside occurring in jalap (the root of a convolvulaceous plant), and extracted as a colorless, tasteless, gummy mass of powerful purgative properties.

An extract from dogwood used as a febrifuge.

A poisonous alkaloid extracted from corroval, and characterized by its immediate action in paralyzing the heart.

A fixed, semidrying oil extracted from cottonseed. It is pale yellow when pure (sp. gr., .92-.93). and is extensively used in soap making, in cookery, and as an adulterant of other oils.

An instrument of a hooked form, used in certain cases in the extraction of a fetus. Dunglison.

Pertaining to, or derived from, cubebs; as, cubebic acid (a soft olive-green resin extracted from cubebs).

A black resinoid extract prepared by the South American Indians from the bark of several species of Strychnos (S. toxifera, etc.). It sometimes has little effect when taken internally, but is quickly fatal when introduced into the blood, and used by the Indians as an arrow poison. [Written also urari, woorali, woorari,…

A deadly alkaloid extracted from the curare poison and from the Strychnos toxifera. It is obtained in crystalline colorless salts.

The coloring principle of turmeric, or curcuma root, extracted as an orange yellow crystalline substance, C14H14O4, with a green fluorescence.

A white amorphous substance, regarded as a glucoside, extracted from the corm of Cyclamen Europæum.

A peculiar mucilaginous substance extracted from the seeds of the quince (Cydonia vulgaris), and regarded as a variety of amylose.

or practice of opening cysts; esp., the operation of cutting into the bladder, as for the extraction of a calculus.

A variety of starch extracted from the dahlia; -- called also inulin. See Inulin.

A young person, either male or female, of noble or gentle extraction; as, Damsel Pepin; Damsel Richard, Prince of Wales. [Obs.]

A colorless crystalline substance, C9H6O4, extracted from daphnin.

A dark green bitter resin extracted from the mezereon (Daphne mezereum) and regarded as the essential principle of the plant. [R.]

A white crystalline glucoside extracted from the bastard hemp (Datisca cannabina).

To prepare by boiling; to digest in hot or boiling water; to extract the strength or flavor of by boiling; to make an infusion of.

The act or process of boiling anything in a watery fluid to extract its virtues. In decoction . . . it either purgeth at the top or settleth at the bottom. Bacon.