EPIDIDYMIS Meaning of EPIDIDYMIS in English n. (pl. epididymides) Anat. a convoluted duct behind the testis, along which sperm passes to the vas deferens. [ Gk epididumis (as EPI-, didumoi testicles) ] Concise Oxford English dictionary. Краткий оксфордский словарь английского языка. 2012