/ Dictionary / Index E Eder: Meaning and Definition of Find definitions for: E•der Pronunciation: (ā'dur), [key] — n. a river in central Germany, mainly in Hesse and flowing E to Kassel. 110 mi. (177 km) long. Random House Unabridged Dictionary, Copyright © 1997, by Random House, Inc., on Infoplease. edentulous Ederle Related Content Daily Word Quiz: opulent Analogy of the Day: Today’s Analogy Spelling Bee: Today’s Spelling Bee Frequently Misspelled Words Frequently Mispronounced Words Easily Confused Words Writing & Language