adventitia
ad·ven·ti·tia
noun \ˌad-vən-ˈti-shə, -(ˌ)ven-\Definition of ADVENTITIA
: an external chiefly connective tissue covering of an organ; especially : the external coat of a blood vessel
— ad·ven·ti·tial \-shəl\ adjective
Origin of ADVENTITIA
New Latin, alteration of Latin adventicia, neuter plural of adventicius coming from outside, from adventus, past participle
First Known Use: 1876
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