[hahy-druh-leys, -leyz]
noun Biochemistry.
an enzyme that catalyzes hydrolysis.
Also called hydrolyst [hahy-druh-list] .

1920–25; hydr-1 + -ol1 + -ase

Dictionary.com Unabridged
Based on the Random House Dictionary, © Random House, Inc. 2014.
Cite This Source Link To hydrolase
World English Dictionary
hydrolase (ˈhaɪdrəˌleɪz)
an enzyme, such as an esterase, that controls hydrolysis

Collins English Dictionary - Complete & Unabridged 10th Edition
2009 © William Collins Sons & Co. Ltd. 1979, 1986 © HarperCollins
Publishers 1998, 2000, 2003, 2005, 2006, 2007, 2009
Cite This Source
American Heritage
Medical Dictionary

hydrolase hy·dro·lase (hī'drə-lās', -lāz')
An enzyme that catalyzes the hydrolysis of a substrate through the addition of water.

The American Heritage® Stedman's Medical Dictionary
Copyright © 2002, 2001, 1995 by Houghton Mifflin Company. Published by Houghton Mifflin Company.
Cite This Source
Encyclopedia Britannica


any one of a class of more than 200 enzymes that catalyze the hydrolysis of several types of compounds. Esterases include lipases, which break ester bonds (between a carboxylic acid and an alcohol) in lipids, and phosphatases, which act analogously upon phosphates; a narrower category comprises the nucleases, which are phosphatases that hydrolyze nucleic acids. Glycosidases sever bonds between sugar molecules in carbohydrates. Peptidases hydrolyze peptide bonds (between the carboxylic acid group of one amino acid and the amino group of another) within protein molecules (see proteolytic enzyme). Specific hydrolases also catalyze reactions that break ether (CO) bonds; carbon-nitrogen (CN) bonds other than peptide bonds; acid anhydride bonds; carbon-carbon (CC) bonds; or phosphorus-nitrogen (PN) bonds

Learn more about hydrolase with a free trial on Britannica.com.

Encyclopedia Britannica, 2008. Encyclopedia Britannica Online.
Cite This Source
Copyright © 2014 Dictionary.com, LLC. All rights reserved.
  • Please Login or Sign Up to use the Recent Searches feature