(n.) The thin epithelium lining the blood vessels, lymphatics, and serous cavities. See Epithelium.
Webster's Revised Unabridged Dictionary
| APA | Webster's. (2011). endothelium. Retrieved September 22, 2026, from http://smartdefine.org/endothelium/definitions/2003239 |
| Chicago | Webster's. 2011. "endothelium" http://smartdefine.org/endothelium/definitions/2003239 (accessed September 22, 2026). |
| Harvard | Webster's 2011, endothelium, Smart Define, viewed 22 September, 2026, <http://smartdefine.org/endothelium/definitions/2003239>. |
| MLA | Webster's. "endothelium" 27 May 2011. Web. 22 September 2026. <http://smartdefine.org/endothelium/definitions/2003239> |