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endothelium

[en-doh-thee-lee-uhm]

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noun, plural en·do·the·li·a

[-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.

Origin:
1870–75; endo- + Neo-Latin -thelium; compare epithelium

Related forms

en·do·the·li·al, adjective

sub·en·do·the·li·al, adjective

Dictionary.com Unabridged
Based on the Random House Dictionary, © Random House, Inc. 2012.
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Endothelium has a plethora of syllables.

So is dichlorodiphenyltrichloroethane. Does it mean:

the estimation of something as valueless (encountered mainly as an example of one of the longest words in the English language).

a white, crystalline, water-insoluble solid, C14H9Cl5, usually derived from chloral by reaction with chlorobenzene in the presence of fuming sulfuric acid: used as an insecticide and as a scabicide and pediculicide: agricultural use prohibited in the U.S.

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Collins

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]

endo'thelial

—*adj*

endo'thelioid

—*adj*

Collins English Dictionary - Complete & Unabridged 10th Edition
2009 © William Collins Sons & Co. Ltd. 1979, 1986 © HarperCollins
Publishers 1998, 2000, 2003, 2005, 2006, 2007, 2009
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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.
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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.

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Related Words

angioblast

endothelioid

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