a long, oval-shaped structure attached to the rear upper surface of each testicle, consisting mainly of the sperm ducts of the testicles
Origin of epididymisModern Latin ; from Classical Greek ; from epi-, upon + didymoi, testicles, origin, originally plural of didymos, double, reduplicated, reduplication of duo, two
A long, narrow, convoluted tube, part of the spermatic duct system, that lies on the posterior aspect of each testicle, connecting it to the vas deferens.
Origin of epididymisGreek epididumis : epi-, epi- + didumoi, twins, testicles, pl. of didumos, double; see dwo- in Indo-European roots.
From Ancient Greek ἐπιδιδυμίς (epididymís), from ἐπί (epi, “upon, over”) + δίδυμος (didumos, “testicle”).