Look up: leavening

1. Leavening
   Leav'en·ing noun 1. The act of making light, or causing to ferment, by means of leaven. 2. That which leavens or makes light. Bacon.
   Found on http://www.encyclo.co.uk/webster/L/25
   
   
2. Leavening
   • (n.) The act of making light, or causing to ferment, by means of leaven. • (p. pr. & vb. n.) of Leaven • (n.) That which leavens or makes light.
   Found on http://thinkexist.com/dictionary/meaning
   
   
3. leavening
   (from the article `baking`) Many bakery products depend on the evolution of gas from added chemical reactants as their leavening source. Items produced by this system include ... Pie doughs and similar products are usually unleavened, but most bakery products are leavened, or aerated, by gas bubbles developed naturally or ... [2 rela...
   Found on http://www.britannica.com/eb/a-z/l/27