potassa /pə-tasˈə/ (chem; now rare)

1. Potash
2. Potassium monoxide or potassium hydroxide
3. Formerly used for potassium in compound names, eg carbonate of potassa

• ground tackles
• ground-to-air
• ground water
• ground waters
• ground wave
• ground waves
• groundwork
• groundworks
• ground zero
• group
• groupable
• groupage
• groupages
• group calling
• medallic
• medalling
• medallion
• medallioned
• medallioning
• medallions
• medallist
• medallists
• medal play
• medalplay
• medal plays