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Meaning of leavening

leav•en•ing

Pronunciation: (lev'u-ning), [key]
— n.
  1. a substance used to produce fermentation in dough or batter; leaven.
  2. the act or process of causing to ferment by leaven.
  3. leaven (def. 3).
Random House Unabridged Dictionary, Copyright © 1997, by Random House, Inc., on Infoplease.
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