yeast

yeast
n.
any of a group of fungi in which the body (mycelium) consists of individual cells, which may occur singly, in groups of two or three, or in chains. Yeasts reproduce by budding and by the formation of sexual spores (in the case of the perfect yeasts) or asexual spores (in the case of the imperfect yeasts). Baker's yeast (Saccharomyces) ferments carbohydrates to produce alcohol and carbon dioxide and is important in brewing and breadmaking. Some yeasts are a commercial source of proteins and of vitamins of the B complex. Yeasts that cause disease in humans include Candida, Cryptococcus, and Pityrosporum.

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  • 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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