a white, crystalline monosaccharide, prepared by the hydrolysis of lactose
Origin of galactosegalact(o)- + -ose
A monosaccharide, C6H12O6, commonly occurring in lactose and in certain pectins, gums, and mucilages.
(countable and uncountable, plural galactoses)
From Ancient Greek γάλακτος (galaktos, “milk”) + -ose (“sugar”).