/ Dictionary / Index E epencephalon: Meaning and Definition of Find definitions for: ep•en•ceph•a•lon Pronunciation: (ep"un-sef'u-lon", -lun), [key] — pl. -lons, -la the hindbrain. Random House Unabridged Dictionary, Copyright © 1997, by Random House, Inc., on Infoplease. epeisodion ependyma Related Content Daily Word Quiz: pedagogy Analogy of the Day: Today’s Analogy Spelling Bee: Today’s Spelling Bee Frequently Misspelled Words Frequently Mispronounced Words Easily Confused Words Writing & Language