pearlash
/ˈpɜrlˌæʃ/
noun
- A white powder made from wood ashes, used in making soap, glass, and some foods.
- The glassmaker added pearlash to the sand to lower its melting point.
- In colonial times, settlers used pearlash to make soap at home.
- Some traditional recipes call for pearlash as a leavening agent in baked goods.
Synonyms