Invertase \In*vert"ase\, n. (Chem.) (a) An enzyme capable of effecting the inversion of cane suger, producing invert sugar. It is found in many plants and in the intestines of animals. (b) By extension, any enzyme which splits cane sugar, milk sugar, lactose, etc., into monosaccharides.
invertase n : an enzyme that catalyzes the hydrolysis of sucrose into glucose and fructose [syn: {saccharase}, {sucrase}]