adventitia

2 definitions found

adventitia - Collaborative International Dictionary of English v.0.48 :

  adventitia \adventitia\ n.
     1. the membranous outer covering of an organ or blood vessel.
        [WordNet 1.5]

adventitia - WordNet (r) 2.1 (2005) :

  adventitia
      n 1: an enveloping or covering membrane or layer of body tissue
           [syn: tunic, tunica, adventitia]