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Definition yeast

Etymology

From Middle English yest, yeest, gest, gist, from Old English ?ist, ?yst, from Proto-Germanic *jestuz. Cognate with Saterland Frisian Jääst (“yeast”), West Frisian gêst, gist (“yeast”), Dutch gist (“yeast”), German Low German Geste, Gest, Gist (“yeast”), German Gischt (“yeast”), Walloon yesse (“yeast”), dialectal French giest, gist (< Germanic), Swedish jäst (“yeast”), Norwegian jest (“yeast”), Icelandic jöstur (“yeast”).

Noun

yeast (countable and uncountable, plural yeasts)

1. An often humid, yellowish froth produced by fermenting malt worts, and used to brew beer, leaven bread, and also used in certain medicines.
2. A single-celled fungus of a wide variety of taxonomic families.
   1. A true yeast or budding yeast in order Saccharomycetales.
      1. baker's yeast, Saccharomyces cerevisiae
         1. A compressed cake or dried granules of this substance used for mixing with flour to make bread dough rise.
      2. brewer's yeast, certain species of Saccharomyces, principally Saccharomyces cerevisiae and Saccharomyces carlsbergensis.
   2. Candida, a ubiquitous fungus that can cause various kinds of infections in humans.
      1. The resulting infection, candidiasis.
3. (figuratively) A frothy foam.

Verb

yeast (third-person singular simple present yeasts, present participle yeasting, simple past and past participle yeasted)

1. To ferment.
2. (of something prepared with a yeasted dough) To rise.
3. (African American Vernacular, slang) To exaggerate

Results 341 Words with the letters YEAST

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