The Collaborative International Dictionary
Hydrosulphuric
Hydrosulphuric \Hy`dro*sul*phu"ric\, a. [Hydro-, 2 + sulphuric.] (Chem.) Pertaining to, or derived from, hydrogen and sulphur; as, hydrosulphuric acid, a designation applied to the solution of hydrogen sulphide in water.
Wiktionary
hydrosulphuric
a. (alternative spelling of hydrosulfuric English)
Usage examples of "hydrosulphuric".
Treated with water, they dissolved, and the solution, when brought into contact with liquid hydrosulphuric acid, precipitated yellow sulphur of arsenic, particularly when one heated it and added a few drops of hydrochloric acid.