You searched for: “leaven
leaven (s) (noun), leavens (pl)
1. An agent, often yeast, that causes batter or dough to rise; especially, by fermentation: The baker used leaven to make the bread dough expand.
2. An element, influence, or agent that works subtly to lighten, to enliven, or to modify a whole: The speaker included a leaven of humor in order to brighten the mood of the audience.
This entry is located in the following unit: lev-, levi- (page 2)