brewer's yeast

noun

: a yeast used or suitable for use in brewing
specifically : the dried pulverized cells of such a yeast (Saccharomyces cerevisiae) used especially as a source of B-complex vitamins

Examples of brewer's yeast in a Sentence

Recent Examples on the Web
Examples are automatically compiled from online sources to show current usage. Read More Opinions expressed in the examples do not represent those of Merriam-Webster or its editors. Send us feedback.
Food With Brewer's Yeast Foods containing brewer's yeast, or Saccharomyces cerevisiae, can worsen HS symptoms. Merve Ceylan, Health, 26 Dec. 2024 Things to Consider Keep in mind that brewer's yeast may interact with some medications, like those for diabetes, and can worsen symptoms of Crohn’s. Shushy Rita Setrakian Ms, Verywell Health, 21 Feb. 2024

Word History

First Known Use

1824, in the meaning defined above

Time Traveler
The first known use of brewer's yeast was in 1824

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Cite this Entry

“Brewer's yeast.” Merriam-Webster.com Dictionary, Merriam-Webster, https://www.merriam-webster.com/dictionary/brewer%27s%20yeast. Accessed 9 Mar. 2025.

Kids Definition

brewer's yeast

noun
: a yeast used or suitable for use in brewing
also : the dried ground-up cells of such a yeast used as a source of the vitamin B complex

Medical Definition

brewer's yeast

noun
: the dried pulverized cells of a yeast of the genus Saccharomyces (S. cerevisiae) used in brewing and especially as a source of B-complex vitamins

More from Merriam-Webster on brewer's yeast

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