Illustrated Glossary of Organic Chemistry

Sugar: (1) A carbohydrate, or a monosaccharide portion of a disaccharide, oligosaccharide, or polysaccharide.
Molecular structure of α-D-glucopyranose, a
simple sugar (a monosaccharide).		   
Molecular structure of amylose, a component of starch (a
polysaccharide) and a complex sugar.


(2) Sucrose; table sugar.


Molecular structure of sucrose, a disaccharide.