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Noun: brewer's yeast
  1. Used as a leaven in baking and brewing
    "The brewer's yeast made the bread rise perfectly";
    - baker's yeast, Saccharomyces cerevisiae
     
  2. Yeast used in fermenting beer
    "He added brewer's yeast to the wort to start the fermentation process"

Derived forms: brewer's yeasts

Type of: barm [Brit], yeast

Part of: genus Saccharomyces, Saccharomyces

Encyclopedia: Brewer's yeast