(n.) An ethereal salt or compound ether, consisting of an organic radical united with the residue of any oxygen acid, organic or inorganic; thus the natural fats are esters of glycerin and the fatty acids, oleic, etc.
Webster's Revised Unabridged Dictionary
| APA | Webster's. (2011). ester. Retrieved September 20, 2026, from http://smartdefine.org/ester/definitions/2004881 |
| Chicago | Webster's. 2011. "ester" http://smartdefine.org/ester/definitions/2004881 (accessed September 20, 2026). |
| Harvard | Webster's 2011, ester, Smart Define, viewed 20 September, 2026, <http://smartdefine.org/ester/definitions/2004881>. |
| MLA | Webster's. "ester" 27 May 2011. Web. 20 September 2026. <http://smartdefine.org/ester/definitions/2004881> |