/ Dictionary / Index E Edison: Meaning and Definition of Find definitions for: Ed•i•son Pronunciation: (ed'u-sun), [key] — n. 1847–1931, U.S. inventor, esp. of electrical devices. a township in central New Jersey. 70,193. Random House Unabridged Dictionary, Copyright © 1997, by Random House, Inc., on Infoplease. See also: edison (Thesaurus) Edirne Edison effect Related Content Daily Word Quiz: neologism Analogy of the Day: Today’s Analogy Spelling Bee: Today’s Spelling Bee Frequently Misspelled Words Frequently Mispronounced Words Easily Confused Words Writing & Language