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Definition of Yeast


  1. The foam, or troth (top yeast), or the sediment (bottom yeast), of beer or other in fermentation, which contains the yeast plant or its spores, and under certain conditions produces fermentation in saccharine or farinaceous substances; a preparation used for raising dough for bread or cakes, and making it light and puffy; barm; ferment.
  2. Spume, or foam, of water.
  3. A form of fungus which grows as indvidual rounded cells, rather than in a mycelium, and reproduces by budding; esp. members of the orders Endomycetales and Moniliales. Some fungi may grow both as a yeast or as a mycelium, depending on the conditions of growth.
More "Yeast" Quotations

Yeast Translations

yeast in Dutch is gist
yeast in French is lie, levure, levain
yeast in German is Schaum, Hefe
yeast in Italian is fondaccio
yeast in Portuguese is fermento
yeast in Spanish is hez, levadura