Thionic
Pronunciation : Thi*on"ic
Part of Speech : a.
Etymology : [Gr. (Chem.)
Definition : Defn: 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.
Source : Webster's Unabridged Dictionary, 1913