tersulphide

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