/ Dictionary / Index E ependyma: Meaning and Definition of Find definitions for: ep•en•dy•ma Pronunciation: (u-pen'du-mu), [key] — n. Anat. a membrane lining the canal of the spinal cord and the ventricles of the brain. Random House Unabridged Dictionary, Copyright © 1997, by Random House, Inc., on Infoplease. See also: ependyma (Thesaurus) epencephalon epenthesis 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