brewer's yeast

American  

noun

1. a yeast, as of the genus Saccharomyces, suitable for use as a ferment in the manufacture of wine and beer.

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brewer's yeast British  

noun

1. a yeast, Saccharomyces cerevisiae , used in brewing See yeast

2. yeast obtained as a by-product of brewing

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Etymology

Origin of brewer's yeast

First recorded in 1915–20

Example Sentences

Our paper explains how a very important chromosome feature -- the centromere -- in brewer's yeast came to be.

From Science Daily • Mar. 10, 2026

Originally developed as a resourceful use of leftover brewer's yeast, Marmite gained popularity with 20th century families for its high concentration of B12 and folic acid.

From Salon • Sep. 26, 2023

Reed is studying nutritional supplements such as “pollen patties,” which are artificial discs the size of a small burger patties made from brewer’s yeast and other ingredients.

From Seattle Times • Oct. 30, 2022

Still another bacterium, the familiar E. coli, transferred DNA into brewer’s yeast, which is a fungus.

From New York Times • Aug. 13, 2018

I must admit they’re doing their best to keep me in condition: they’re plying me with dextrose, cod-liver oil, brewer’s yeast and calcium.

From "The Diary of a Young Girl" by Anne Frank