epi-, ep-

(Greek: above, over, on, upon; besides; in addition to; toward; among)

epidermal
epidermatoplasty
epidermis
epidermitis
epidermization
epidermodysplasia
Faulty growth or development of the epidermis (the outermost and nonvascular layer of the skin).
epidermoid
epidermoidal
epidermolysis
epidermomycosis
A skin disease caused by a fungus.
epidermosis
epididymectomy
Surgical removal of the epididymis (tubule where the storage of sperm occurs).
epididymidectomy
The surgical removal of the epididymis which is a structure within the scrotum attached to the backside of the testis.

The epididymis is a coiled segment of the spermatic ducts that serves to store, mature and transport spermatozoa between the testis and the vas deferens.

The vas deferens is the tube connecting the testes with the urethra which is a coiled duct that conveys sperm from the epididymis to the ejaculatory duct and the urethra.

epididymis (s), epididymides (pl)
A small oblong body resting on and beside the posterior surface of the testes, consisting of a convoluted tube 13 to 20 feet (3.97 to 6.1 meters) long. It constitutes the first part of the secretory duct of the testis.
epididymitis
Inflammation of the epididymis.

Related "above, over, beyond the normal, excessive" word units: hyper-; super-, supra-, sur; ultra-, ult-.