Recent Examples of lactase from the Web
This is one cause of lactase deficiency and lactose intolerance.
The strongest signal of selection was a region on Chromosome 2 that contained the LCT gene producing lactase, the enzyme that breaks down the lactose in milk.
These example sentences are selected automatically from various online news sources to reflect current usage of the word 'lactase.' Views expressed in the examples do not represent the opinion of Merriam-Webster or its editors. Send us feedback.
Origin and Etymology of lactase
First Known Use: 1891See Words from the same year
medical Definition of lactase
Seen and Heard
What made you want to look up lactase? Please tell us where you read or heard it (including the quote, if possible).