Meaning of the word "leavening agent" in English

What does "leavening agent" mean in English? Explore the meaning, pronunciation, and specific usage of this word with Lingoland.

leavening agent

US /ˈlɛvənɪŋ ˈeɪdʒənt/
UK /ˈlɛvənɪŋ ˈeɪdʒənt/

Noun

a substance used in dough or batter to make it rise, such as yeast or baking powder

Example:
Yeast is a common leavening agent in bread making.
Baking powder acts as a chemical leavening agent.