noun, plural endothelia [en-doh-thee-lee-uh] .
a type of epithelium composed of a single layer of smooth, thin cells that lines the heart, blood vessels, lymphatics, and serous cavities.

1870–75; endo- + Neo-Latin -thelium; cf. epithelium

endothelial, adjective
subendothelial, adjective
Dictionary.com Unabridged
Based on the Random House Dictionary, © Random House, Inc. 2014.
Cite This Source Link To endothelium
World English Dictionary
endothelium (ˌɛndəʊˈθiːlɪəm)
n , pl -lia
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 10th Edition
2009 © William Collins Sons & Co. Ltd. 1979, 1986 © HarperCollins
Publishers 1998, 2000, 2003, 2005, 2006, 2007, 2009
Cite This Source
American Heritage
Medical Dictionary

endothelium en·do·the·li·um (ěn'dō-thē'lē-əm)
n. pl. en·do·the·li·a (-lē-ə)
A thin layer of flat epithelial cells that lines serous cavities, lymph vessels, and blood vessels.

en'do·the'li·al adj.
The American Heritage® Stedman's Medical Dictionary
Copyright © 2002, 2001, 1995 by Houghton Mifflin Company. Published by Houghton Mifflin Company.
Cite This Source
American Heritage
Science Dictionary
endothelium   (ěn'dō-thē'lē-əm)  Pronunciation Key 
Plural endothelia
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 © 2002. Published by Houghton Mifflin. All rights reserved.
Cite This Source
Example sentences
Some authors consider the endothelium absent in places and here the medullary cells are directly bathed by the blood.
Endothelium, which comprises the vasculature, is a specialized type of epithelium.
Related Words
Copyright © 2014 Dictionary.com, LLC. All rights reserved.
  • Please Login or Sign Up to use the Recent Searches feature