Definition of Lactase

1. Noun. Any of a group of enzymes (trade name Lactaid) that hydrolyze lactose to glucose and galactose.

Exact synonyms: Lactaid
Generic synonyms: Disaccharidase
Language type: Trade Name

Definition of Lactase

1. Noun. (enzyme) A ?-galactosidase enzyme that is involved in the hydrolysis of the disaccharide lactose into constituent galactose and glucose monomers. ¹

¹ Source:

Definition of Lactase

1. an enzyme [n -S] - See also: enzyme

Medical Definition of Lactase

1. Enzyme that breaks down the milk sugar lactose. (12 Dec 1998)

Lactase Pictures

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Lexicographical Neighbors of Lactase

lactamic acid
lactase (current term)
lactase deficiency
lactase restriction
lactate-2-sulfate sulfatase
lactate 2-mono-oxygenase
lactate dehydratase
lactate dehydrogenase
lactate dehydrogenase isoenzymes
lactate dehydrogenase virus
lactate level
lactated Ringer's injection
lactated Ringer's solution

Literary usage of Lactase

Below you will find example usage of this term as found in modern and/or classical literature:

1. Proceedings of the Royal Society of London by Royal Society (Great Britain) (1904)
"Consequently, the lactase of the pancreas is not taken up as such from the blood, but must be formed by the pancreas itself. ..."

2. Proceedings of the Royal Society of London by Royal Society (Great Britain) (1904)
"Nor was the appearance of lactase due to the increased production of this ferment in the ... Injection of an extract of mucous membrane rich in lactase, ..."

3. The Physiology of Alimentation by Martin Fischer (1907)
"lactase is a ferment which has the power of acting upon the disaccharide lactose (milk-sugar) and converting it into the monosaccharides d-glucose ..."

4. International Medical and Surgical Surveyby American Institute of Medicine by American Institute of Medicine (1922)
"The action of yeast lactase is optimal in a neutral medium. ... The action of lactase in three lactose yeasts, determined quantitatively in numerous ..."

5. Intracellular Enzymes: A Course of Lectures Given in the Physiological by Horace Middleton Vernon (1908)
"... invertase, and lactase in animal tissues. lactase and adaptation. Vegetable dia- static and ..."

6. General Chemistry of the Enzymes by Hans von Euler, Thomas Henry Pope (1912)
"lactase Quantitative measurements have been made by E . F . Arm - strong (Proc. Roy. Soc., 1904, 73, 506). In the various series of experiments, ..."

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