Source : Webster's Revised Unabridged Dictionary (1913)
Monosaccharide \Mon`o*sac"cha*ride\, n. Also -rid \-rid\ .
[Mono- + saccharide.] (Chem.)
A simple sugar; any of a number of sugars (including the
trioses, tetroses, pentoses, hexoses, etc.), not decomposable
into simpler sugars by hydrolysis. Specif., as used by some,
a hexose. The monosaccharides are all open-chain compounds
containing hydroxyl groups and either an aldehyde group or a
ketone group.
Trisaccharide \Tri*sac"cha*ride\, n. Also -rid \-rid\ (Chem.)
A complex sugar, as raffinose, yielding by hydrolysis three
simple sugar molecules.