tunica albuginea noun3 •Layer of connective tissue covering the testis.The testis has a rich superficial plexus beneath the tunica albuginea. — 1918 •Layer of connective tissue covering the ovaries.If the tunica albuginea of an ovary be divided with a scalpel, the stroma may then be readily torn asunder by pulling the edges of the incision apart ... — 1867 •Tough fibrous layer of connective tissue that surrounds the corpora cavernosa of the penis.Scarring of the tunica albuginea results in a portion of the tunica that cannot stretch and expand as the cavernosal sinusoids. — 2002 formstunicae albugineae