Definitions
1.verbTo add a leavening agent.
2.verbTo cause to rise by fermentation.
3.verbTo temper an action or decision.
4.verbTo imbue; to infect; to vitiate.
5.verbTo rise or become larger.
6.nounThe process by which something is leavened.
7.adjectiveMaking light by aeration.
8.nounAny organism or substance added to a food product (such as dough or batter) that makes it rise when cooked.