baking powder

1. 1.

   any of various powdered mixtures used in baking as a substitute for yeast

   Broaderleaven

Questions about baking powder

What does baking powder mean?

baking powder means "any of various powdered mixtures used in baking as a substitute for yeast".

Is baking powder a common word?

baking powder is banded "Rare" — specialist or archaic — most readers will not have met it. The band comes from how often the word appears in a large corpus of everyday English, not from an editor's impression.