Definitions

1. noun

A compound containing two sulphur atoms, especially a salt of bisulphuric acid.

“The chemist studied the properties of bisulphide compounds.”

2. noun

A substance containing sulphur in a divalent state.

“The bisulphide found in the mineral was an important discovery.”

3. noun

A salt of hydrogen bisulphide.

“The bisulphide used in the experiment was highly reactive.”