- (a.) Having a valence greater than one.
- (a.) Having more than one atom in the molecule; consisting of several atoms.
Webster's Revised Unabridged Dictionary
| APA | Webster's. (2011). polyatomic. Retrieved September 21, 2026, from http://smartdefine.org/polyatomic/definitions/2047128 |
| Chicago | Webster's. 2011. "polyatomic" http://smartdefine.org/polyatomic/definitions/2047128 (accessed September 21, 2026). |
| Harvard | Webster's 2011, polyatomic, Smart Define, viewed 21 September, 2026, <http://smartdefine.org/polyatomic/definitions/2047128>. |
| MLA | Webster's. "polyatomic" 27 May 2011. Web. 21 September 2026. <http://smartdefine.org/polyatomic/definitions/2047128> |