Definition of yeast in English:

yeast

noun

  • 1A microscopic fungus consisting of single oval cells that reproduce by budding, and are capable of converting sugar into alcohol and carbon dioxide.

    • ‘This evolutionarily maintained mechanism has been detected from yeast to mammalian cells.’
    • ‘Their attempts to genetically engineer spider silk relied on the use of bacterial, yeast, or plant cells.’
    • ‘The yeast uses this sugar in the same way it uses the glucose in white sugar.’
    • ‘That sugar reacts with the live yeast to produce more carbon dioxide.’
    • ‘Candida is a single-celled fungus or yeast cell that inhabits the intestinal tract and mucus membranes of every living person on the earth.’
    • ‘When you come back to your experiment, you'll notice that yeast cells do a really good job of creating carbon dioxide.’
    • ‘This method relies on fungi to break the complex sugars of rice into simple sugars that yeast can quickly convert to alcohol.’
    • ‘Pour warm water into a bowl, and sprinkle over sugar and yeast.’
    • ‘That's because when there are sufficient nutrients available, normal yeast reproduces asexually.’
    • ‘Yeasts are single-celled plants which utilize sugar in building new yeast cells.’
    • ‘They are distributed not only in higher plants but also in algae, yeast, and cyanobacteria.’
    • ‘The first breakthrough came when Paul Nurse found a yeast gene that controlled the division of yeast cells.’
    • ‘They would break up and rearrange themselves as the yeast cells reproduced.’
    • ‘Drosophila strains were maintained on standard cornmeal / yeast / sugar and agar media.’
    • ‘The yeast cells in the envelope of yeast are the cells that do the work in your loaf of bread.’
    • ‘And, as each pint contains about eight billion cells of yeast, stressed yeast can dramatically alter taste.’
    • ‘Well, fermentation is nothing less than single-celled yeast fungi busily reproducing - and turning sugar to ethanol in the process.’
    • ‘Vitamin C has been shown to increase the activity of specific white blood cells that ingest and destroy bacteria, yeast and certain cancerous cells.’
    • ‘An inability to transport TPP across membranes was directly demonstrated only in yeast and liver cells.’
    • ‘Some faulty wines undergo a secondary fermentation in the bottle, due to a small amount of yeast and sugar left inadvertently in the wine.’
    • ‘The results described above suggest that anesthetics may inhibit yeast cell division by decreasing amino acid import.’
    • ‘It involves putting yeast and sugar together in a bottle to create fizz.’
    • ‘Alcohol is chock full of sugar, and sugar causes yeast infections in many people.’
    • ‘This is inferred because spore viability is reduced in some checkpoint single mutants of budding yeast.’
    • ‘I heard and watched the students grasp the understanding of how yeast absorbs sugar.’
    • ‘In budding yeast, many genes are induced early in the cell cycle.’
    1. 1.1A grayish-yellow preparation of yeast obtained chiefly from fermented beer, used as a fermenting agent, to raise bread dough, and as a food supplement.
      • ‘Kvass is a lightly fermented sour-sweet beverage that is commonly made of black bread or grain with yeast and somewhat resembles beer in flavor.’
      • ‘One of the key ingredients in a home-baked loaf apart from yeast, flour, salt and water - is time.’
      • ‘Like with Mac's in Nelson, there's the pungent, delectable smell of yeast and fermentation.’
      • ‘The inclusion of yeast results in fermentation and causes the dough to rise, if it is left in a warm place.’
      • ‘The bagel is defined as a hard bread roll made of yeast dough twisted into a doughnutlike shape, cooked in simmering water and then baked.’
      • ‘Not yet available in the market, this bread is made of naturally fermented rice starter dough with no artificial yeast or preservatives added.’
      • ‘To make dough, allow yeast to stand in a small bowl until frothy, about 10 minutes.’
      • ‘Added to selective breeding is another step, another human act, that of using yeast to raise the bread or ferment the wine.’
      • ‘When it came time to bake bread, a cup of this live culture would be added to the dough to provide the yeast needed to leaven the bread.’
      • ‘In yeast breads, use a bit more yeast or let the dough rise longer.’
      • ‘The box contains all the ingredients, like the grape juice concentrate, yeast, and stabilizing agents.’
      • ‘They were raised on standard cornmeal medium supplemented with live yeast.’
      • ‘This bottle-conditioned ale contains live yeast which allows the beer to develop in the bottle.’
      • ‘For the last ten years, like a lump of bread dough without yeast, our consumption rates have refused to rise.’
      • ‘As beer brewers do with yeast, the Wiandts drop bits of mycelia into a malt sugar solution.’
      • ‘Place water, honey and yeast in the food processor and leave until frothy, about 10 minutes.’
      • ‘Allowing the yeast or other leavening agents to do their duty.’
      • ‘Each pack contained flour, sunflower oil, sugar, haricot beans, rice, salt, noodles, yeast, and canned food.’
      • ‘But orgies of organic molecules are not life, just as flour, water, yeast, and salt are not bread.’
      • ‘To make the dough, blend the yeast with 4 tbsp water at body temperature.’
    2. 1.2Biology
      Any unicellular fungus that reproduces vegetatively by budding or fission, including forms such as candida that can cause disease.
      • ‘Each subclass is essential for viability in both budding and fission yeasts; therefore they are not redundant factors.’
      • ‘In budding and fission yeasts, life span is defined by the methods used to measure it.’
      • ‘Candida species are polymorphic and can form colonies containing budding yeasts, pseudohyphae, and true hyphae.’
      • ‘Unlike other fungi, budding and fission yeasts lack endogenous DNA methylation.’
      • ‘The yeast Candida albicans and the beer yeast Saccharomyces cerevisiae have been demonstrated to increase atopic allergy.’
      • ‘Streptomyces rochei AK 39 was active against dermatophytes whereas yeasts and other molds were resistant.’

Origin

Old English, of Germanic origin; related to Dutch gist and German Gischt froth, yeast from an Indo-European root shared by Greek zein to boil.

Pronunciation:

yeast

/yēst/