Part of Speech: Noun
Definition: A type of fungus that is used in making bread, beer, and wine.
Pronunciations: US: /jist/, UK: /jiːst/
Origin and Usage: The word "yeast" comes from the Old English word "gist" and was first recorded in the 14th century. Yeast is used in the process of fermentation to make bread, beer, and wine. It is also used as a nutritional supplement and in the production of biofuels.
Synonyms: Fungus, leavening agent, ferment, culture
Related Words: Mould, fungi, spore
Example Sentences: