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Yeast


/yēst/ 

Noun, pl. yeasts

1. A microscopic fungus consisting of single oval cells that reproduce by budding, and are capable of converting sugar into alcohol and carbon dioxide. (Google Dictionary)

2. A grayish-yellow preparation of this obtained chiefly from fermented beer, used as a fermenting agent, to raise bread dough, and as a food supplement. (Google Dictionary)

3. Any unicellular fungus that reproduces vegetatively by budding or fission, including forms such as candida that can cause disease. (Google Dictionary)

4. These are eukaryotic microorganisms classified in the kingdom Fungi, with 1,500 species currently described (estimated to be 1% of all fungal species). Yeasts are unicellular, although some species with yeast forms may become multicellular through the formation of a string of connected budding cells known as pseudohyphae, or false hyphae, as seen in most molds. (wikipedia.org)

5. An often humid, yellowish froth produced by fermenting malt worts, and used to brew beer, leaven bread, and also used in certain medicines. (wiktionary.com)

6. A type of single-celled fungus. (wiktionary.com)


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