(a.) Having a valence of four; capable of combining with, being replaced by or compared with, four monad atoms; tetravalent; -- said of certain atoms and radicals; thus, carbon and silicon are quadrivalent elements.
Webster's Revised Unabridged Dictionary
| APA | Webster's. (2011). quadrivalent. Retrieved September 21, 2026, from http://smartdefine.org/quadrivalent/definitions/2051590 |
| Chicago | Webster's. 2011. "quadrivalent" http://smartdefine.org/quadrivalent/definitions/2051590 (accessed September 21, 2026). |
| Harvard | Webster's 2011, quadrivalent, Smart Define, viewed 21 September, 2026, <http://smartdefine.org/quadrivalent/definitions/2051590>. |
| MLA | Webster's. "quadrivalent" 27 May 2011. Web. 21 September 2026. <http://smartdefine.org/quadrivalent/definitions/2051590> |