Oside

Osides are polymers of monosaccharides formed by condensation:

of one molecule of monosaccharide and the alcohol function of another molecule;
of two monosaccharide molecules.

The two molecules are then bound by a so-called osidebond.

Structure of aglycone formed by the condensation of a monosaccharide and an alcohol (R). The two molecules are joined by an oside bond (glycosidic oxygen) © Dineshts, Wikimedia public domain

Structure of aglycone formed by the condensation of a monosaccharide and an alcohol (R). The two molecules are joined by an oside bond (glycosidic oxygen) © Dineshts, Wikimedia public domain