Dictionary

lactase

noun lac·tase \ˈlak-ˌtās, -ˌtāz\

Definition of LACTASE

:  an enzyme that hydrolyzes beta-galactosides (as lactose) and occurs especially in the intestines of young mammals and in yeasts
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Origin of LACTASE

International Scientific Vocabulary
First Known Use: 1891
Medical Dictionary

lactase

noun lac·tase \ˈlak-ˌtās, -ˌtāz\

Medical Definition of LACTASE

:  an enzyme that hydrolyzes especially lactose to glucose and galactose and occurs especially in the intestines of young mammals and in yeasts

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