"Tersulphuret" is a word in ENGLISH

tersulphuret ENGLISH
Definition:

A trisulphide.

Few words of positivity

Hell yeah! Twitter was proof that leaderless self-organizing systems could be true agents of change.

Biz Stone, Things a Little Bird Told Me: Confessions of the Creative Mind

WORD SUGGESTIONS
Laugh your heart out.

Mum: From now on your going to have free school dinners.Son:But, Mum, I don't want three school dinners, one is more than enough !

tersulphide ENGLISH
tri- ENGLISH

A prefix (also used adjectively) denoting three proportional or combining part, or the third degree of that to the name …

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trisulphide ENGLISH

A sulphide containing three atoms of sulphur.

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