n. A monosaccharide found, along with lactose, in dairy products, and is synthesized by the body where it is found associated with glycolipids and glycoproteins.
the GNU version of the Collaborative International Dictionary of English
n. A white, crystalline sugar, C6H12O6, isomeric with dextrose, obtained by the decomposition of milk sugar, and also from certain gums. When oxidized it forms mucic acid. Called also lactose (though it is not lactose proper).
The Century Dictionary and Cyclopedia
n. A crystalline dextrorotatory sugar, C6H12O6, produced by the action of dilute acids on milk-sugar.
WordNet 3.0 Copyright 2006 by Princeton University. All rights reserved.
n. a simple sugar found in lactose
Word Usage
"The galactose and glucose then enter the bloodstream where the galactose is converted in more glucose, the basic power source of the body."