tersulphuret

== English == === Etymology === From ter- +‎ sulphuret. === Noun === tersulphuret (plural tersulphurets) (chemistry, archaic) A trisulfide. === References === “tersulphuret”, in Webster’s Revised Unabridged Dictionary, Springfield, Mass.: G. & C. Merriam, 1913, →OCLC.