EPIDIDYMIS

[ep.i.did.y.mis] n, pl -mi.des [NL, fr. Gk, fr. epi- + didymos testicle, twin, fr. dyo two--more at two] (1610): a system of ductules emerging posteriorly from the testis that holds sperm during maturation and that forms a tangled mass before uniting into a single coiled duct which is continuous with the vas deferens -- ep.i.did.y.mal adj