LEAVEN
leaven
Noun
- Any agent used to make dough rise or to have a similar effect on baked goods.
- Anything that makes a general assimilating (especially a corrupting) change in the mass.
Verb
- To add a leavening agent.
- To cause to rise by fermentation.
- To temper an action or decision.
- To imbue; to infect; to vitiate.
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