Leavening and Mainspring

Leavening noun - A substance used to produce fermentation in dough or a liquid.

Mainspring and leavening are semantically related. In some cases you can use "Mainspring" instead a noun "Leavening".

Nearby Words: leaven, leavened

Mainspring noun - The most important spring in a mechanical device (especially a clock or watch); as it uncoils it drives the mechanism.

Leavening and mainspring are semantically related. Sometimes you can use "Leavening" instead a noun "Mainspring".