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)

• unvulgarizing
• unvulnerable
• unwaged
• unwaked
• unwakened
• unwalled
• unwandering
• unwanted
• unwarded
• unware
• unwarely
• unwareness
• unwarenesses
• umbrella trees
• umbrello
• umbrere
• umbrette
• umbrettes
• Umbrian
• umbriere
• umbrieres
• umbriferous
• umbril
• umbrose
• umbrous