Definition of persulphide in English:

persulphide

(also persulfide)

noun

Chemistry
  • A sulphide containing the highest possible proportion of sulphur.

Origin

Mid 19th century; earliest use found in Thomas Graham (1805–1869), chemist. From per- + sulphide.

Pronunciation

persulphide

/pəˈsʌlfʌɪd/