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brewer's yeast

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noun
  1. a yeast, as of the genus Saccharomyces, suitable for use as a ferment in the manufacture of wine and beer.
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Origin of brewer's yeast

First recorded in 1915–20
Dictionary.com Unabridged Based on the Random House Unabridged Dictionary, © Random House, Inc. 2018
British Dictionary definitions for brewer's yeast

brewer's yeast

noun
  1. a yeast, Saccharomyces cerevisiae, used in brewingSee yeast (def. 3)
  2. yeast obtained as a by-product of brewing
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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
brewer's yeast in Medicine

brewer's yeast

(brōō′ərz)
n.
  1. A yeast (genus Saccharomyces) used as a source of B-complex vitamins.
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The American Heritage® Stedman's Medical Dictionary Copyright © 2002, 2001, 1995 by Houghton Mifflin Company. Published by Houghton Mifflin Company.