a compound formed from a simple sugar and another compound by replacement of a hydroxyl group in the sugar molecule. Many drugs and poisons derived from plants are glycosides.
/ ˌglīkəˈsidik/ adj.
Any one of a group of compounds consisting of a pyranose sugar residue, such as glucose, linked to a noncarbohydrate residue (R) by a glycosidic bond
: the hydroxyl group
(–OH) on carbon-1 of the sugar is replaced by –OR. Glycosides are widely distributed in plants; examples are the anthocyanin
pigments and the cardiac glycosides
, such as digoxin (see digitalis
) and ouabain, which are used medicinally for their stimulant effects on the heart.
glycoside (gly-koh-syd) n.
a compound formed by replacing the hydroxyl group
(–OH) of a sugar by another group. (If the sugar is glucose the compound is known as a glucoside
.) Glycosides derived from plants include some pharmacologically important products. cardiac g.
a drug, such as digoxin (derived from digitalis), that increases the force of heart muscle contraction.
The product that is obtained when a sugar reacts with an alcohol or phenol.
The product obtained when a sugar reacts with an alcohol or phenol.