A combining form (also used adjectively) denoting that three atoms or equivalents of the substance to the name of which it is prefixed are combined with two of some other element or radical; as, sesquibromide, sesquicarbonate, sesquichloride, sesquioxide.
Webster's Revised Unabridged Dictionary
| APA | Webster's. (2011). sesqui-. Retrieved September 26, 2026, from http://smartdefine.org/sesqui-/definitions/2060803 |
| Chicago | Webster's. 2011. "sesqui-" http://smartdefine.org/sesqui-/definitions/2060803 (accessed September 26, 2026). |
| Harvard | Webster's 2011, sesqui-, Smart Define, viewed 26 September, 2026, <http://smartdefine.org/sesqui-/definitions/2060803>. |
| MLA | Webster's. "sesqui-" 28 May 2011. Web. 26 September 2026. <http://smartdefine.org/sesqui-/definitions/2060803> |