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)

• ultra
• ultra-
• ultrabasic
• ultracentrifugal
• ultracentrifugation
• ultracentrifuge
• ultracentrifuged
• ultracentrifuges
• ultracentrifuging
• ultracrepidarian
• ultracrepidate
• ultracrepidated
• ultracrepidates
• ultracrepidating
• ultra-distance
• ultrafiche
• ultrafiches
• ultrafilter
• ultrafiltered
• ultrafiltering
• ultrafilters
• ultrafiltrate
• ultrafiltrates
• ultrafiltration
• ultra-heat-treated