NCIt definition : Any compound in which a sugar group is covalently bonded through its anomeric carbon
to another group via an O-glycosidic bond or an S-glycosidic bond; glycosides involving
the latter are also called thioglycosides. However, substances containing N-glycosidic
bonds, where the anomeric carbon is bound to some other group via a nitrogen atom,
are called glycosylamines; the term N-glycoside is considered a misnomer by IUPAC
and is discouraged. Furthermore, the sugar group needs to be bonded to a non-sugar
for the molecule to qualify as a glycoside, thus excluding the polysaccharides. The
sugar group in glycosides is known as the glycone, which can be a single sugar group
(monosaccharide) or several sugar groups (oligosaccharide); the non-sugar group is
known as the aglycone or genin.;