Definition from Wiktionary, the free dictionary
From their general formula Cn(H2O)n; they were once thought to be hydrates of carbon.
- (organic chemistry, nutrition) A sugar, starch, or cellulose that is a food source of energy for an animal or plant; a saccharide.
- These microbes are primarily responsible for breaking down cellulose and other carbohydrates into volatile fatty acids (VFAs).
- See also Wikisaurus:carbohydrate
Derived terms 
organic compounds; sugar, starch or cellulose