出典:Wiktionary
From the Latin adventitius (“extraneous”).
adventitia (countable かつ uncountable, 複数形 adventitias)
出典:Wikipedia
出典:『Wikipedia』 (2011/03/11 14:41 UTC 版)
Adventitia is the outermost connective tissue covering of any organ, vessel, or other structure. It is also called the tunica adventitia or the tunica externa