meaning of potash
1. The hydroxide of potassium hydrate, a hard white brittle substance, KOH, having strong caustic and alkaline properties; -- hence called also caustic potash.
2. The impure potassium carbonate obtained by leaching wood ashes, either as a strong solution (lye), or as a white crystalline (pearlash).
3. a potassium compound often used in agriculture and industry
Related Words
potash | potash alum | potashes |