brewer's yeast

brew·er's yeast (brrz)

n.

A yeast of the genus Saccharomyces, used as a ferment in brewing and also as a source of B-complex vitamins.

Thesaurus

Noun	1.	brewer's yeast - yeast used in fermenting beer bottom fermenting yeast - brewer's yeast used in bottom fermentation of lager top fermenting yeast - brewer's yeast used in top fermentation of ale barm, yeast - a commercial leavening agent containing yeast cells; used to raise the dough in making bread and for fermenting beer or whiskey
	2.	brewer's yeast - used as a leaven in baking and brewing baker's yeast, Saccharomyces cerevisiae genus Saccharomyces, Saccharomyces - single-celled yeasts that reproduce asexually by budding; used to ferment carbohydrates yeast - any of various single-celled fungi that reproduce asexually by budding or division