"yeast" Definition

Definitions for the word "yeast" from multiple English dictionaries.

1. n.
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.
Source: The 1913 Webster Unabridged Dictionary, 1913
2. n.
Spume, or foam, of water.
Source: The 1913 Webster Unabridged Dictionary, 1913
3. n.
A form of fungus which grows as indvidual rounded cells, rather than in a mycelium, and reproduces by budding; esp. members of the orders Endomycetales and Moniliales. Some fungi may grow both as a yeast or as a mycelium, depending on the conditions of growth.
Source: The 1913 Webster Unabridged Dictionary, 1913
4. n.
Greyish-yellow fungus obtained esp. From fermenting malt liquors and used as a fermenting agent, to raise bread, etc. [old english]
Source: Oxford English Dictionary, 1884

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Additional Info
This page provides a list of definitions and meanings for "yeast" from various historical English dictionaries. By displaying multiple definitions, you can compare and contrast different meanings and nuances of a word, phrase, or slang. You can also see the changes in meaning of "yeast" over time by viewing the definitions from different dictionaries published at different times in history. The page also includes other information to help users expand their vocabulary and understand the context of the word.

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