leavening

1. (noun) an influence that works subtly to lighten or modify something; "his sermons benefited from a leavening of humor"
Synonyms: leaven
Related Words: imponderable

2. (noun) a substance used to produce fermentation in dough or a liquid
Synonyms: leaven
Related Words: baking powder, barm, matter, sourdough, substance, yeast



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