Lactose
Pronunciation : Lac"tose`
Part of Speech : n.
Definition : 1. (Physiol. Chem.)
Defn: Sugar of milk or milk sugar; a crystalline sugar present in milk, and separable from the whey by evaporation and crystallization. It has a slightly sweet taste, is dextrorotary, and is much less soluble in water than either cane sugar or glucose. Formerly called lactin.
2. (Chem.)
Defn: See Galactose.
Source : Webster's Unabridged Dictionary, 1913