from The American Heritage® Dictionary of the English Language, 4th Edition
- n. A monosaccharide, C6H12O6, commonly occurring in lactose and in certain pectins, gums, and mucilages.
from Wiktionary, Creative Commons Attribution/Share-Alike License
- 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.
from 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).
from The Century Dictionary and Cyclopedia
- n. A crystalline dextrorotatory sugar, C6H12O6, produced by the action of dilute acids on milk-sugar.
from WordNet 3.0 Copyright 2006 by Princeton University. All rights reserved.
- n. a simple sugar found in lactose
From Ancient Greek γάλακτος (galaktos, "milk") + -ose (“sugar”). (Wiktionary)