1. (n.) 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. (n.) See Galactose.

barley sugar beet sugar cellulose clinical dextran deoxyribose dextran dextrose erythrose fructose galactose glucose glycogen grape sugar hydroxy aldehyde hydroxy ketone lactose levulose lyxose maple sugar molasses monosaccharide nipa sugar pentose sugar polysaccharide polysaccharose raffinose saccharide starch sucrose sugar tree molasses trisaccharide