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lactase

[lak-teys, -teyz] /ˈlæk teɪs, -ˌteɪz/
noun, Biochemistry
1.
an enzyme capable of hydrolyzing lactose into glucose and galactose.
Origin of lactase
1890-1895
1890-95; lact- + -ase
Dictionary.com Unabridged
Based on the Random House Dictionary, © Random House, Inc. 2015.
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British Dictionary definitions for lactase

lactase

/ˈlækteɪs; -teɪz/
noun
1.
any of a group of enzymes that hydrolyse lactose to glucose and galactose
Word Origin
C20: from lacto- + -ase
Collins English Dictionary - Complete & Unabridged 2012 Digital Edition
© William Collins Sons & Co. Ltd. 1979, 1986 © HarperCollins
Publishers 1998, 2000, 2003, 2005, 2006, 2007, 2009, 2012
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lactase in Medicine

lactase lac·tase (lāk'tās')
n.
See beta-galactosidase.

The American Heritage® Stedman's Medical Dictionary
Copyright © 2002, 2001, 1995 by Houghton Mifflin Company. Published by Houghton Mifflin Company.
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lactase in Science
lactase
  (lāk'tās')   
An enzyme that is found in the small intestine, liver, and kidneys of mammals and catalyzes the breakdown of lactose into galactose and glucose.
The American Heritage® Science Dictionary
Copyright © 2002. Published by Houghton Mifflin. All rights reserved.
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9
11
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