a white, crystalline disaccharide found in milk and prepared by evaporation of the whey, leaving the crystallized sugar: used in infant foods, medicine, etc.
Origin of lactoselact(o)- + -ose
A white crystalline disaccharide, C12H22O11, found in milk, that may be hydrolyzed to yield glucose and galactose. Refined lactose obtained from whey is used in infant foods, bakery products, confections, and pharmaceuticals as a diluent and excipient. Also called milk sugar .
- alecost, coletas, locates, scatole, talcose, to scale