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

• photo-emission
• photo-engraving
• photo-essay
• photo-essays
• photo-etching
• photo finish
• photo finishes
• photofission
• photofissions
• Photofits
• Photofit®
• photoflood
• photoflood lamp
• photoflood lamps
• photofloods
• photog
• photog.
• photogen
• photogene
• photogenes
• prismoid
• prismoidal
• prismoids
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• prismy