noun Biochemistry.
  1. the complex of enzymes obtained from yeast, also occurring in bacteria and other organisms, that acts in alcoholic fermentation and other forms of glycolysis.

Origin of zymase

1870–75; < French < Greek zȳ́m(ē) leaven + French -ase -ase
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Historical Examples of zymase

British Dictionary definitions for zymase


  1. a mixture of enzymes that is obtained as an extract from yeast and causes fermentation in sugars
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

zymase in Medicine


[zīmās′, -māz′]
  1. The enzyme complex in yeasts that catalyzes the breakdown of sugar into alcohol and carbon dioxide.
The American Heritage® Stedman's Medical Dictionary Copyright © 2002, 2001, 1995 by Houghton Mifflin Company. Published by Houghton Mifflin Company.