- a type of epithelium composed of a single layer of smooth, thin cells that lines the heart, blood vessels, lymphatics, and serous cavities.
Origin of endothelium
Dictionary.com Unabridged Based on the Random House Unabridged Dictionary, © Random House, Inc. 2018
Examples from the Web for endothelium
Gaps occur in the elastic membrane which become covered by endothelium.Glaucoma
These cells are developed from the Endothelium and mesothelium.
The youngest tissue is thus found directly beneath the endothelium.
The peritoneum, especially the omental part, is the seat of multiple ecchymoses, and the endothelium is fatty.
The endothelium is seen as a delicate line, in which a few nuclei are visible.
- a tissue consisting of a single layer of cells that lines the blood and lymph vessels, heart, and some other cavities
C19: New Latin, from endo- + -thelium, from Greek thēlē nipple
Collins English Dictionary - Complete & Unabridged 2012 Digital Edition © William Collins Sons & Co. Ltd. 1979, 1986 © HarperCollins Publishers 1998, 2000, 2003, 2005, 2006, 2007, 2009, 2012
- A thin layer of flat epithelial cells that lines serous cavities, lymph vessels, and blood vessels.
The American Heritage® Stedman's Medical Dictionary Copyright © 2002, 2001, 1995 by Houghton Mifflin Company. Published by Houghton Mifflin Company.
- A thin layer of flat epithelial cells that lines the lymph vessels, blood vessels, and the inner cavities of the heart. Compare mesothelium.
The American Heritage® Science Dictionary Copyright © 2011. Published by Houghton Mifflin Harcourt Publishing Company. All rights reserved.