betagalactosidase

[ bey-tuh-guh-lak-tuh-sahy-deys, -deyz or, esp. British, bee- ]
/ ˌbeɪ tə gəˌlæk təˈsaɪ deɪs, -deɪz or, esp. British, ˌbi- /

noun Biochemistry.

any of a family of enzymes capable of liberating galactose from carbohydrates.

Origin of betagalactosidase

beta + galactoside a glycoside in which the sugar is galactose (< French; see galactose, -ide) + -ase