Medical Dictionary

adventitia

noun ad·ven·ti·tia \ˌad-vən-ˈtish-(ē-)ə, -(ˌ)ven-\

Medical Definition of ADVENTITIA

:  the outer layer that makes up a tubular organ or structure and especially a blood vessel, is composed of collagenous and elastic fibers, and is not covered with peritoneum—called also tunica adventitia, tunica externa
July 02, 2015
apprehension Hear it
comprehension or the fear of future evil
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