• synonyms


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.
Show More

Origin of zymase

1870–75; < French < Greek zȳ́m(ē) leaven + French -ase -ase
Dictionary.com Unabridged Based on the Random House Unabridged Dictionary, © Random House, Inc. 2018

Examples from the Web for zymase

Historical Examples of zymase

  • For the alcoholic fermentation of glucose by the zymase of yeast juice two substances are also necessary.

    The Nature of Animal Light

    E. Newton Harvey

  • Hans von Euler-Chelpin isolated one part of zymase, which remains active even after heating its solution to the boiling point.

  • A comparison of the conditions of action of carboxylase and zymase has revealed several interesting points of difference.

  • Although the action of zymase may be regarded as mechanical, the enzyme cannot be produced by any other than living protoplasm.

  • Such material is far more active than the zymase obtained originally by Buchner from the expressed juice of yeast-cells.

British Dictionary definitions for zymase


  1. a mixture of enzymes that is obtained as an extract from yeast and causes fermentation in sugars
Show More
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.
Show More
The American Heritage® Stedman's Medical Dictionary Copyright © 2002, 2001, 1995 by Houghton Mifflin Company. Published by Houghton Mifflin Company.