adventitia
[ad-ven-tish-ee-uh, -tish-uh]
- the external covering of an organ or other structure, derived from connective tissue, especially the external covering of a blood vessel.
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Origin of adventitia
Dictionary.com Unabridged
Based on the Random House Unabridged Dictionary, © Random House, Inc. 2018
Examples from the Web for adventitia
Historical Examples
Up to the third decade there is only a strengthening of the media and adventitia.
Arteriosclerosis and Hypertension:Louis Marshall Warfield
The adventitia varies much in thickness, being better developed in the medium-sized than in the large arteries.
Arteriosclerosis and Hypertension:Louis Marshall Warfield
Coincidently with this, there is thickening by a connective tissue growth in the adventitia.
Arteriosclerosis and Hypertension:Louis Marshall Warfield
There is also, as a rule, rather pronounced hypertrophy of the adventitia.
Arteriosclerosis and Hypertension:Louis Marshall Warfield
adventitia
- the outermost covering of an organ or part, esp the outer coat of a blood vessel
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Word Origin
C19: New Latin, from the neuter plural of Latin adventīcius; see adventitious
Collins English Dictionary - Complete & Unabridged 2012 Digital Edition
© William Collins Sons & Co. Ltd. 1979, 1986 © HarperCollins
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adventitia
(ăd′vĕn-tĭsh′ə)- The outermost membranous covering of an organ or structure, especially the outer coat of an artery.
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The American Heritage® Stedman's Medical Dictionary
Copyright © 2002, 2001, 1995 by Houghton Mifflin Company. Published by Houghton Mifflin Company.