maltose

n. malt sugar, water-soluble sugar derived from malt (used as a nutrient, sweetener and in culture media)

Maltose, or malt sugar, is a disaccharide formed from two units of glucose joined with an α(1→4) linkage. It is the second member of an important biochemical series of glucose chains. The addition of another glucose unit yields maltotriose; further additions will produce dextrins (also called maltodextrins) and eventually starch.
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Maltose /mal·tose/ a disaccharide composed of two glucose residues, the fundamental structural unit of glycogen and starch. mal·tose n. [more]Maltose - Community and Resources

Noun
1. a white crystalline sugar formed during the digestion of starches
(synonym) malt sugar
(hypernym) disaccharide

n. maltose, malt sugar, sweet substance derived from malt