‖n. [ L. hepar, hepatis, the liver, Gr. &unr_;. ] 1. (Old Chem.) Liver of sulphur; a substance of a liver-brown color, sometimes used in medicine. It is formed by fusing sulphur with carbonates of the alkalies (esp. potassium), and consists essentially of alkaline sulphides. Called also hepar sulphuris [ 1913 Webster ]

2. Any substance resembling hepar proper, in appearance; specifically, in homeopathy, calcium sulphide, called also hepar sulphuris calcareum (&unr_;). [ 1913 Webster ]

Hepar antimonii fld>(Old Chem.), a substance, of a liver-brown color, obtained by fusing together antimony sulphide with alkaline sulphides, and consisting of sulphantimonites of the alkalies; -- called also liver of antimony. [ 1913 Webster ]