yeast

• 一种单细胞真菌，用于烘焙和酿造以引起发酵；也指含有这些细胞的商品（酵母粉、酵母菌）。

A noun referring to a type of single-celled fungus used in baking and brewing to cause fermentation, or the commercial product containing these cells.

不可数

1. Leavening agentB1formalculinary

   A commercial product containing live yeast cells, used to make dough rise in baking bread and to ferment beer or whiskey.

   酵母

   • She added yeast to the flour mixture to make the bread rise.
   • Brewers use yeast to convert sugars into alcohol.
   • The recipe calls for one packet of active dry yeast.

   同义词barmfermentleaven

2. Single-celled fungusB2formalscientific

   Any of various microscopic fungi that reproduce by budding or division, and are essential in baking and fermentation.

   酵母

   • Yeast is a type of fungus that grows on fruits and grains.
   • Under a microscope, you can see yeast cells budding.
   • Different strains of yeast are used for different fermentation processes.