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)

• deathlinesses
• deathly
• death-marked
• death mask
• death masks
• deathmatch
• deathmatches
• death metal
• death on
• death penalties
• death penalty
• death-practised
• death rate
• death rates
• death rattle
• death rattles
• death ray
• death rays
• death roll
• death rolls
• death row
• death rows
• deaths
• death's-head
• death's-head moth