commercial potassium carbonate.
- Pearl ash
noun 1. the granular crystalline form of potassium carbonate
noun 1. barley milled into small, round grains, used in cooking, especially in soups. noun 1. barley ground into small round grains, used in cooking, esp in soups and stews
noun 1. a light bluish gray.
noun 1. a city on S Oahu, in central Hawaii.