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yeast Definition

yeast (yēst)

noun

  1. any of various single-celled ascomycetous fungi in which little or no mycelium develops and which ordinarily reproduce by budding: they ferment sugars to form alcohol and carbon dioxide; esp.,
    1. any of various yeasts (esp. genus Saccharomyces) used in food production, as in making beer, wine, etc. and as a leavening in baking
    2. any of various yeasts (esp. genus Candida) causing infections or diseases
  2. brewer's yeast
    1. the yellowish, moist mass of yeast plants occurring as a froth on fermenting solutions
    2. this substance dried in flakes or granules or compressed into cakes
  4. foam; froth
    1. something that agitates or causes ferment; leaven
    2. ferment; agitation

Etymology: ME yest < OE gist, akin to Ger gischt, spray, froth & OHG jesan, to ferment < IE base *yes-, to foam, boil up > Gr zein, to boil, seethe

intransitive verb

Rare to froth or ferment

yeast Synonyms

yeast

n.

leaven, zyme, ferment, barm, amylase, pepsin, diastase; see also catalyst, enzyme, fungus.

yeast Usage Examples

Converse of object

  • dissolve: In a medium sized bowl dissolve yeast and sugar in the warm water, and let stand until yeast starts to swell.
  • bud: They grow as budding yeasts in anaerobic conditions but as mycelia in the presence of even low concentrations of oxygen.

Adjective modifier

  • budding: Left: the common budding yeast, Saccharomyces cerevisiae, viewed by phase-contrast microscopy.
  • cultured: The must starts to ferment thanks to the natural yeast present in the vineyard, or a cultured yeast being added to the must.
  • nutritional: Nutritional yeast, Saccharomyces cerevisiae, is a food yeast, grown on a.. .

Modifies a noun

  • two-hybrid: Methods: The yeast two-hybrid system was used for this study.
  • gluten: Free from wheat dairy lactose sugar yeast gluten salt corn/maize soya and starch.
  • lees: Aging in bottle with the yeast lees imbued further richness.
  • saccharomyces: We are studying pre-mRNA splicing in the yeast Saccharomyces cerevisiae.
  • cerevisiae: We are studying pre-mRNA splicing in the yeast Saccharomyces cerevisiae.
  • overgrowth: To deal with her eczema and the yeast overgrowth on her foot and under her tummy, Victoria had to cut out all sugars.

Noun used with modifier

  • fission: Do checkpoint mechanisms regulate S phase entry in fission yeast?
  • lactose: Free from sugar salt starch wheat maize gluten lactose yeast dairy phosphates artificial colors preservatives and dyes.
  • brewer: Maybe add some vitamins or brewers yeast to there diet.
  • wheat: Free from sugar salt starch wheat maize gluten lactose yeast dairy phosphates artificial colors preservatives and dyes.
  • dairy: Free from wheat dairy lactose sugar yeast gluten salt corn/maize soya and starch.
  • brewing: Mauldon's traditional beers are brewed only from the finest East Anglian malted barley, traditional English hops, water and brewing yeast.

Possessives

  • brewer: Feed pet brewer's yeast, vitamin B or garlic tablets.. .
  • baker: Dry brewer's or baker's yeast 1 part by weight.

Preposition: of

  • Pharisee: And in the other, he warns about the yeast of the Pharisees that can destroy.

Browse dictionary entries near yeast

  1. ‹ yeasayer
  2. ‹ years, estate for
  3. ‹ years
  4. ‹ yearning
  5. ‹ yearn
  6. ‹ yearly
  7. ‹ yearlong
  8. ‹ yearling
  9. ‹ yearbook
  10. ‹ Year To Date
  1. yeast infection ›
  2. yeasty ›
  3. Yeats ›
  4. yech ›
  5. Yedo ›
  6. yegg ›
  7. yeh ›
  8. Yekaterinburg ›
  9. yeld ›
  10. yell ›