Wolffian duct noun
: the duct of the mesonephros that persists in the female chiefly as part of the epoophoron and in the male as the duct system leaving the testis and including the epididymis, vas deferens, seminal vesicle, and ejaculatory duct—called also Leydig's duct, mesonephric duct
Seen & Heard
What made you want to look up Wolffian duct? Please tell us where you read or heard it (including the quote, if possible).