(n.) An atom whose valence is six, and which can be theoretically combined with, substituted for or replaced by, six monad atoms or radicals; as, sulphur is a hexad in sulphuric acid. Also used as an adjective.
Webster's Revised Unabridged Dictionary
| APA | Webster's. (2011). hexad. Retrieved September 22, 2026, from http://smartdefine.org/hexad/definitions/2016393 |
| Chicago | Webster's. 2011. "hexad" http://smartdefine.org/hexad/definitions/2016393 (accessed September 22, 2026). |
| Harvard | Webster's 2011, hexad, Smart Define, viewed 22 September, 2026, <http://smartdefine.org/hexad/definitions/2016393>. |
| MLA | Webster's. "hexad" 27 May 2011. Web. 22 September 2026. <http://smartdefine.org/hexad/definitions/2016393> |