• synonyms


[ahy-som-uh-reys, -reyz]
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noun Biochemistry.
  1. any of a class of enzymes that catalyze reactions involving intramolecular rearrangements.
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Origin of isomerase

First recorded in 1940–45; isomer + -ase
Dictionary.com Unabridged Based on the Random House Unabridged Dictionary, © Random House, Inc. 2018

British Dictionary definitions for isomerase


  1. any enzyme that catalyses the conversion of one isomeric form of a compound to another
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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

isomerase in Medicine


  1. One of a group of enzymes that catalyzes the conversion of one isomer into another.
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The American Heritage® Stedman's Medical Dictionary Copyright © 2002, 2001, 1995 by Houghton Mifflin Company. Published by Houghton Mifflin Company.