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: an enzyme that hydrolyzes beta-galactosides (such as lactose) and occurs especially in the intestines of young mammals and in yeasts
Examples of lactase in a Sentence
Recent Examples on the Web
Enzyme lactase: These medications, like Lactaid or Dairy Ease, are meant to help people with lactose intolerance digest foods with lactose and might help prevent protein farting related to lactose.
—Cristina Mutchler, Health, 31 July 2024
As an extra precaution, many brands also add lactase to their product to make sure not even trace amounts of lactose remain.
—Audrey Bruno, SELF, 20 June 2024
Taking a lactase enzyme supplement has been shown to prevent symptoms when taken with lactose foods (dairy).
—Suzie Finkel Ms, Rd, Cdn, Health, 26 May 2024
Just a single caplet packs a hefty 10,350 ALU (lactase units) compared to comparable products with as little as 3,000 ALU across two or more pills.
—Suzie Finkel Ms, Rd, Cdn, Health, 26 May 2024
See all Example Sentences for lactase
These examples are programmatically compiled from various online sources to illustrate current usage of the word 'lactase.' Any opinions expressed in the examples do not represent those of Merriam-Webster or its editors. Send us feedback about these examples.
Word History
Etymology
International Scientific Vocabulary
First Known Use
1891, in the meaning defined above
Dictionary Entries Near lactase
Cite this Entry
“Lactase.” Merriam-Webster.com Dictionary, Merriam-Webster, https://www.merriam-webster.com/dictionary/lactase. Accessed 2 Oct. 2024.
Kids Definition
lactase
noun
lac·tase
ˈlak-ˌtās
: an enzyme that breaks down lactose and related compounds and occurs especially in the intestines of young mammals and in yeasts
Medical Definition
lactase
noun
lac·tase
ˈlak-ˌtās, -ˌtāz
: an enzyme that hydrolyzes especially lactose to glucose and galactose and occurs especially in the intestines of young mammals and in yeasts
More from Merriam-Webster on lactase
Britannica.com: Encyclopedia article about lactase
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