Dictionary
pot•ash
Pronunciation: (pot'ash"), [key]—
n.
1. potassium carbonate, esp. the crude impure form obtained from wood ashes.
2. potassium hydroxide.
3. the oxide of potassium, K
2O.
4. potassium, as carbonate of potash.
Random House Unabridged Dictionary, Copyright © 1997, by Random House, Inc., on Infoplease.