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yeast

[yeest] / yist /
NOUN
leaven
Synonyms


NOUN
foam
Synonyms
NOUN
rising agent
Synonyms


Example Sentences

Examples are provided to illustrate real-world usage of words in context. Any opinions expressed do not reflect the views of Dictionary.com.

Perhaps the best-known examples of fermentation are in baking and brewing, where yeast breaks down sugar into ethanol and carbon dioxide.

From BBC • Jun. 4, 2026

"If you tell anyone you have yeast, they immediately ask: can we use it for bread?"

From Barron's • Jun. 3, 2026

Genetic analysis revealed "DNA damage levels very comparable to the original microbes" in the Iceman's guts, suggesting the yeast entered his body soon after death, Sarhan said.

From Barron's • Jun. 3, 2026

Using large deep mutational scanning datasets from their own lab and others, the team looked at the effects of many mutations in model organisms such as yeast and E. coli.

From Science Daily • May 29, 2026

I started cooking Saturday’s meal on Tuesday morning, when I made the stock and started the wild yeast culture for the bread.

From "The Omnivore's Dilemma" by Michael Pollan




Vocabulary lists containing yeast


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