(a.) 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's Revised Unabridged Dictionary
| APA | Webster's. (2011). thionic. Retrieved September 29, 2026, from http://smartdefine.org/thionic/definitions/2072129 |
| Chicago | Webster's. 2011. "thionic" http://smartdefine.org/thionic/definitions/2072129 (accessed September 29, 2026). |
| Harvard | Webster's 2011, thionic, Smart Define, viewed 29 September, 2026, <http://smartdefine.org/thionic/definitions/2072129>. |
| MLA | Webster's. "thionic" 28 May 2011. Web. 29 September 2026. <http://smartdefine.org/thionic/definitions/2072129> |