The Collaborative International Dictionary
Epididymal
Epididymis \Ep`i*did"y*mis\, n. [NL., fr. Gr. ?; 'epi` upon + ? testicle.] (Anat.) An oblong vermiform mass on the dorsal side of the testicle, composed of numerous convolutions of the excretory duct of that organ. -- Ep`i*did"y*mal, a. [1913 Webster] ||
Wiktionary
epididymal
a. Of, in or pertaining to the epididymis, the tube in male mammals which connects the efferent ducts from the rear of each testicle to its vas deferens.