yeast

yeast
I. noun Etymology: Middle English yest, from Old English gist; akin to Old High German jesen, gesen to ferment, Greek zein to boil Date: before 12th century 1. a. a yellowish surface froth or sediment that occurs especially in saccharine liquids (as fruit juices) in which it promotes alcoholic fermentation, consists largely of cells of a fungus (as the saccharomyces, Saccharomyces cerevisiae), and is used especially in the making of alcoholic liquors and as a leaven in baking b. a commercial product containing yeast fungi in a moist or dry medium c. (1) a unicellular fungus that is present and functionally active in yeast, usually has little or no mycelium, and reproduces by budding (2) any of various similar fungi 2. archaic the foam or spume of waves 3. something that causes ferment or activity <
were all seething with the yeast of revolt — J. F. Dobie
> II. intransitive verb Date: 1819 ferment, froth

New Collegiate Dictionary. 2001.

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Synonyms:
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Look at other dictionaries:

  • Yeast — of the species Saccharomyces cerevisiae Scientific classification Domain …   Wikipedia

  • Yeast — Yeast, n. [OE. [yogh]eest, [yogh]est, AS. gist; akin to D. gest, gist, G. gischt, g[ a]scht, OHG. jesan, jerian, to ferment, G. gischen, g[ a]schen, g[ a]hren, Gr. ? boiled, zei^n to boil, Skr. yas. [root]111.] [1913 Webster] 1. The foam, or… …   The Collaborative International Dictionary of English

  • yeast — or yeast plant [yēst] n. [ME yest < OE gist, akin to Ger gischt, spray, froth & OHG jesan, to ferment < IE base * yes , to foam, boil up > Gr zein, to boil, seethe] 1. any of various single celled ascomycetous fungi in which little or no …   English World dictionary

  • yeast|y — «YEES tee», adjective, yeast|i|er, yeast|i|est. 1. of, containing, or resembling yeast. 2. frothy or foamy: »yeasty waves. 3 …   Useful english dictionary

  • yeast — yeast; yeast·i·ly; yeast·i·ness; …   English syllables

  • yeast — [ jist ] noun uncount a white substance used for making bread rise or for making beer ╾ yeast|y adjective …   Usage of the words and phrases in modern English

  • yeast — (n.) O.E. gist yeast, common West Germanic (Cf. M.H.G. gest, Ger. Gischt foam, froth, O.H.G. jesan, Ger. gären to ferment ), from PIE *jes boil, foam, froth (Cf. Skt. yasyati boils, seethes, Gk. zein to boil, Welsh …   Etymology dictionary

  • yeast — см. Приложение 1 (Saccharomyces cerevisiae). (Источник: «Англо русский толковый словарь генетических терминов». Арефьев В.А., Лисовенко Л.А., Москва: Изд во ВНИРО, 1995 г.) …   Молекулярная биология и генетика. Толковый словарь.

  • yeast — yeast. См. дрожжи. (Источник: «Англо русский толковый словарь генетических терминов». Арефьев В.А., Лисовенко Л.А., Москва: Изд во ВНИРО, 1995 г.) …   Молекулярная биология и генетика. Толковый словарь.

  • yeast — is the colloquial name for members of the fungal families, ascomycetes, basidiomycetes and imperfect fungi, that tend to be unicellular for the greater part of their life cycle. Commercially important yeasts include Saccharomyces cerevisiae ;… …   Dictionary of molecular biology

  • yeast — [ji:st] n [U] [: Old English; Origin: gist] a type of ↑fungus used for producing alcohol in beer and wine, and for making bread rise >yeasty adj ▪ a yeasty taste …   Dictionary of contemporary English

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