the external covering of an organ or other structure, derived from connective tissue, especially the external covering of a blood vessel.
Origin of adventitia
1875–80;Related formsad·ven·ti·tial, adjective
< Latin adventīcia,
neuter plural of adventīcius adventitious
Based on the Random House Unabridged Dictionary, © Random House, Inc. 2019
Examples from the Web for adventitia
Historical Examples of adventitia
British Dictionary definitions for adventitia
the outermost covering of an organ or part, esp the outer coat of a blood vessel
Word Origin for adventitia
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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The outermost membranous covering of an organ or structure, especially the outer coat of an artery.
The American Heritage® Stedman's Medical Dictionary
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