Hĕ'par or Hĕ'par-sŭl'phŭr-ĭs, n.

noun

n. [Lat. hepar, Gr. ἧπαρ, the liver.] (Chem.) A sulphuret obtained by fusing sulphur and carbonate of potash together;—it has a liver-brown color; whence the name. [Obs.] Graham.