Definitions of adventitia
  1. noun
    an enveloping or covering membrane or layer of body tissue
    synonyms: tunic, tunica
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    whitish tunic
    sclera, sclerotic coat
    the whitish fibrous membrane (albuginea) that with the cornea forms the outer covering and protection of the eyeball
    tunica albuginea testes
    whitish cover of the testicle
    type of:
    membrane, tissue layer
    a pliable sheet of tissue that covers or lines or connects the organs or cells of animals or plants
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