Epenceph´alon, n. Hindmost segment of the brain.

Epi- (in composition). On; upon; over. Opposed to hypo-.

Epider´mis, n. Cuticle or scarf-skin.

Epidid´ymis, n. An associate organ of the testis, in birds apparently a remnant of the primordial kidney.

Epigas´trium, n. Pit of stomach; upper belly, next to breast. (A region not well distinguished in birds. The term is scarcely used.) (64.)

Epiglot´tis, n. Gristly flap on top of windpipe, rudimentary or wanting in birds.

Epignath´ous, a. Hook-billed.

Epiot´ic, a. for n. A certain element of the auditory capsule.

Epiph´ysis, n. Gristly cap on the end of a bone, afterward becoming bony and united.