yest

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 any of a wide variety of taxonomic families.
   • A microscopical examination of the yeast taken from these rapid vigorous fermentations will only be able to give useful conclusions in one respect.1903, Alfred Peter Carlslund Jørgensen (R. Grey, translator), Practical Management of Pure Yeast: The Application and Examination of Brewery, Distillery, and Wine, Yeasts, The Brewing trade review...
   1. Baker's yeast (Saccharomyces cerevisiae)
   2. A compressed cake or dried granules of this substance used for mixing with flour to make bread dough rise.
   3. brewer's yeast, certain species of Saccharomyces, principally Saccharomyces cerevisiae and Saccharomyces carlsbergensis.
   4. Candida, a ubiquitous fungus that can cause various kinds of infections in humans.

See all 12 meanings of yeast