Yeast

Yeast
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 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. [1913 Webster]

2. Spume, or foam, of water. [1913 Webster]

They melt thy yeast of waves, which mar Alike the Armada's pride, or spoils of Trafalgar. --Byron. [1913 Webster] [1913 Webster]

{Yeast cake}, a mealy cake impregnated with the live germs of the yeast plant, and used as a conveniently transportable substitute for yeast.

{Yeast plant} (Bot.), the vegetable organism, or fungus, of which beer yeast consists. The yeast plant is composed of simple cells, or granules, about one three-thousandth of an inch in diameter, often united into filaments which reproduce by budding, and under certain circumstances by the formation of spores. The name is extended to other ferments of the same genus. See {Saccharomyces}.

{Yeast powder}, a baling powder, -- used instead of yeast in leavening bread. [1913 Webster]


The Collaborative International Dictionary of English. 2000.

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

  • 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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