vas deferens /def″ərənz/ pl. vasa deferentia [L, vas + deferens, carrying away] , the extension of the epididymis of the testis that ascends from the scrotum into the abdominal cavity and joins the seminal vesicle to form the ejaculatory duct. It is enclosed by fibrous connective tissue with blood vessels, nerves, and lymphatics and passes through the inguinal canal as part of the spermatic cord. Also called deferent duct, ductus deferens, spermatic duct, testicular duct. See also testis.
