lactase

[lak-teys, -teyz]

noun

Biochemistry.

1. an enzyme capable of hydrolyzing lactose into glucose and galactose.

lactase

/ ˈlækteɪs, -teɪz /

noun

1. any of a group of enzymes that hydrolyse lactose to glucose and galactose

lactase

1. An enzyme that is found in the small intestine, liver, and kidneys of mammals and catalyzes the breakdown of lactose into galactose and glucose.

Word History and Origins

Origin of lactase¹

First recorded in 1890–95; lact- + -ase

Word History and Origins

Origin of lactase¹

C20: from _lacto- + _-ase

Example Sentences

For example, lactose intolerance is a metabolic condition that happens when the body doesn't produce enough lactase.

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First, they analyzed genetic data from over 542,000 women and focused on variants — tiny changes in DNA — associated with lactase persistence, the ability to digest lactose in adulthood.

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Tubbs explains that Belle Creamers are made with only five ingredients: milk, cream, liquid sugar, natural flavors and lactase enzyme.

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According to Boston Children’s Hospital, lactase is an enzyme that is normally produced in the small intestine, where it breaks down lactose into a form that can be absorbed by the blood.

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Using the new reference panel, they analyzed how a genomic variant of the lactase gene is related to traits such as height, body mass index and low-density lipoprotein cholesterol, also known as "bad cholesterol."

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