polysaccharide

poly·sac·cha·ride

noun \-ˈsak-ə-ˌrīd\

Definition of POLYSACCHARIDE

: a carbohydrate that can be decomposed by hydrolysis into two or more molecules of monosaccharides; especially : one (as cellulose, starch, or glycogen) containing many monosaccharide units and marked by complexity—called also glycan