persulphate /pər-sulˈfāt/

1. That sulphate of a metal which contains the relatively greater quantity of oxygen or of the acid radical
2. A salt of persulphuric /-fūˈrik/ acid (H₂S₂O₈)

• footholds
• footie
• footier
• footies
• footiest
• footing
• footings
• foot-in-the-mouth
• foot-jaw
• foot-jaws
• foot-lambert
• foot-lamberts
• foot-land-raker
• footle
• footled
• footles
• footless
• foot-licker
• foot-lickers
• footlight
• footlights
• footling
• footlings
• footloose
• footman