leavening

Definitions of leavening
  1. noun
    a substance used to produce fermentation in dough or a liquid
    synonyms: leaven
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    types:
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    baking powder
    any of various powdered mixtures used in baking as a substitute for yeast
    sourdough
    a leaven of dough in which fermentation is active; used by pioneers for making bread
    barm, yeast
    a commercial leavening agent containing yeast cells; used to raise the dough in making bread and for fermenting beer or whiskey
    yeast cake
    small cake of compressed moist yeast
    brewer's yeast
    yeast used in fermenting beer
    mother
    a stringy slimy substance consisting of yeast cells and bacteria; forms during fermentation and is added to cider or wine to produce vinegar
    type of:
    substance
    a particular kind or species of matter with uniform properties
  2. noun
    an influence that works subtly to lighten or modify something
    “his sermons benefited from a leavening of humor”
    synonyms: leaven
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    type of:
    imponderable
    a factor whose effects cannot be accurately assessed
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