- any of various small, single-celled fungi of the phylum Ascomycota that reproduce by fission or budding, the daughter cells often remaining attached, and that are capable of fermenting carbohydrates into alcohol and carbon dioxide.
- any of several yeasts of the genus Saccharomyces, used in brewing alcoholic beverages, as a leaven in baking breads, and in pharmacology as a source of vitamins and proteins.
- spume; foam.
- ferment; agitation.
- something that causes ferment or agitation.
- to ferment.
- to be covered with froth.
- any of various single-celled ascomycetous fungi of the genus Saccharomyces and related genera, which reproduce by budding and are able to ferment sugars: a rich source of vitamins of the B complex
- any yeastlike fungus, esp of the genus Candida, which can cause thrush in areas infected with it
- a commercial preparation containing yeast cells and inert material such as meal, used in raising dough for bread or for fermenting beer, whisky, etc
- a preparation containing yeast cells, used to treat diseases caused by vitamin B deficiency
- froth or foam, esp on beer
- to froth or foam
