3 entries found for yeast.
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yeast bakers' yeast brewer's yeast

Main Entry: yeast
Pronunciation: yst, st
Function: noun
1 a : a one-celled fungus that produces alcohol during the process of fermentation; also : any of various similar fungi b : a yellowish foamy material that may occur on the surface of sweet liquids (as fruit juices) undergoing fermentation and that consists chiefly of yeast cells and carbon dioxide c : a commercial product containing living yeast cells that is used mostly in the making of alcoholic beverages and as a leaven especially in baking bread
2 : something that causes motion or activity
- yeasty /y-st, -st/ adjective