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leavening agent

Variant of leavening

noun

  1. a substance used to make baked goods rise by the formation of gas, esp. carbon dioxide, in the batter or dough, as baking powder, yeast, etc.
  2. any influence spreading through something and working on it to bring about a gradual change; tempering quality or thing
  3. a causing to be leavened
Webster's New World College Dictionary Copyright © 2010 by Wiley Publishing, Inc., Cleveland, Ohio.
Used by arrangement with John Wiley & Sons, Inc.
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