synonyms, antonyms, definitions, examples & translations of yeast in English

English Online Dictionary. What means yeast‎? What does yeast mean?



From Middle English yest, yeest, gest, gist, from Old English ġist, ġyst, from Proto-West Germanic *jestu, from Proto-Germanic *jestuz. Cognate with Saterland Frisian Jääst (yeast), West Frisian gêst, gist (yeast), Dutch gist (yeast), German Low German Gest (yeast), German Gischt (sea foam), Swedish jäst (yeast), Norwegian jest (yeast), Icelandic jöstur (yeast).


  • (Received Pronunciation) enPR: yēst, IPA(key): /jiːst/
  • (General American) enPR: yēst, IPA(key): /jist/
  • (dialectal) IPA(key): /iːst/
  • Rhymes: -iːst


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. (figurative) A frothy foam.

Derived terms


See also

  • leaven
  • nutritional yeast


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.



  • Yates, Yeats, as yet, teasy, yates, yeats

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