Thi*on"ic (?), a. [Gr. &?; brimstone,
sulphur.] (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.
Thi*on"ic (?), a. [Gr. &?; brimstone,
sulphur.] (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.