/ Dictionary / Index E epidiascope: Meaning and Definition of Find definitions for: ep•i•di•a•scope Pronunciation: (ep"i-dī'u-skōp"), [key] — n. Optics. a type of magic lantern that projects the image of an opaque object onto a screen. Also called Random House Unabridged Dictionary, Copyright © 1997, by Random House, Inc., on Infoplease. See also: epidiascope (Thesaurus) epidermis epididymis Related Content Daily Word Quiz: mamba Analogy of the Day: Today’s Analogy Spelling Bee: Today’s Spelling Bee Frequently Misspelled Words Frequently Mispronounced Words Easily Confused Words Writing & Language