any sulphide containing three sulphur atoms per molecule
Collins English Dictionary - Complete & Unabridged 2012 Digital Edition © William Collins Sons & Co. Ltd. 1979, 1986 © HarperCollins Publishers 1998, 2000, 2003, 2005, 2006, 2007, 2009, 2012
How to use trisulphide in a sentence
The two sulphides of antimony are called the trisulphide and the pentasulphide respectively.An Elementary Study of Chemistry | William McPherson
A mixture of trioxide of antimony, sulphide of potassium, carbonate of potassium, and undecomposed trisulphide of antimony.
On heating in absence of air, it decomposes into the trisulphide and sulphur.
The Flowers of Antimony is an impure oxysulphide of antimony, with variable proportions of trioxide and undecomposed trisulphide.Poisons: Their Effects and Detection | Alexander Wynter Blyth
By the union of antimony trisulphide with basic sulphides, livers of antimony are obtained.