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A bitter, yellow, crystalline substance, regarded as a glucoside, and obtained from the gentian.

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 glucoside obtained as a white crystalline substance by partial oxidation of salicin, from a willow (Salix Helix of Linnæus.)

A poisonous glucoside accompanying helleborin in several species of hellebore, and extracted as a white crystalline substance with a bittersweet taste. It has a strong action on the heart, resembling digitalin.

A poisonous glucoside found in several species of hellebore, and extracted as a white crystalline substance with a sharp tingling taste. It possesses the essential virtues of the plant; -- called also elleborin.

A glucoside found in ripe and unripe fruit (as the orange), and extracted as a white crystalline substance.

ydride; as, glycolide, phthalide. (c) Any one of a series of derivatives; as, indogenide, glucoside, etc.

A glucoside obtained from woad (indigo plant) and other plants, as a yellow or light brown sirup. It has a nauseous bitter taste, a decomposes or drying. By the action of acids, ferments, etc., it breaks down into sugar and indigo. It is the source of natural indigo.

The variety of sugar (glucose) obtained from the glucoside indican. It is unfermentable, but reduces Fehling's solution.

A white, crystalline, sugarlike substance, obtained by the decomposition of certain glucosides, and intermediate in nature between the hexacid alcohols (ductile, mannite, etc.) and the glucoses.

A glucoside found in the stems of the jalap plant and scammony. It is a strong purgative.

A glucoside found in the seeds of several species of lupine, and extracted as a yellowish white crystalline substance.

A glucoside found in the flowers of a plant (Murraya exotica) of South Asia, and extracted as a white amorphous slightly bitter substance.

Pertaining to, or obtained from, mustard; -- used specifically to designate a glucoside called myronic acid, found in mustard seed.

A glucoside resembling saponin, found in the root of sarsaparilla, smilax, etc., and extracted as a bitter white crystalline substance; -- called also smilacin, sarsaparilla saponin, and sarsaparillin.

A glucoside found in species of the genus Pavia of the Horse- chestnut family.

A glucoside extracted from Phillyrea as a bitter white crystalline substance. It is sometimes used as a febrifuge.

A bitter white crystalline glucoside extracted from the root bark of the apple, pear, cherry, plum, etc. [Formerly also written phloridzin.]

Of, pertaining to, or obtained from, Polygala; specifically, designating an acrid glucoside (called polygalic acid, senegin, etc.), resembling, or possibly identical with, saponin.

A glucoside extracted from the bark of the oak (Quercus) as a bitter citron-yellow crystalline substance, used as a pigment and called quercitron.