thionic Meaning, Definition & Usage

Thi*on"ic adjective
Etymology
Gr. brimstone, sulphur.
Definitions
  1. (Chem.) Of or pertaining to sulphur; containing or resembling sulphur; specifically, designating certain of the thio compounds; as, the thionic acids. Cf. Dithionic, Trithionic, Tetrathionic, etc.

Webster 1913