a real estate agent, such as for example fungus, which causes batter or bread to increase, especially by fermentation.
An element, influence, or agent that actually works subtly to lighten, enliven, or alter a whole.
Any agent always make dough rise or even have the same influence on baked items.
Any substance that produces, or is built to create, fermentation, such as bread or liquids; esp., a percentage of fermenting dough, which, blended with a bigger level of bread, produces a general change in the mass, and renders it light; yeast; barm.
Everything helping to make a general assimilating (especially a corrupting) change in the size.
A substance that creates or is built to produce fermentation, particularly in dough; particularly, a mass of fermenting bread, which, blended with a larger number of bread or paste, creates fermentation on it and renders it light.
something which resembles leaven with its effects, as some secret or impalpable influence working a general modification, specifically an alteration for even worse.
an influence that works subtly to lighten or modify something
a substance regularly produce fermentation in dough or a liquid