/ Dictionary / Index E effecter: Meaning and Definition of Find definitions for: ef•fect•er Pronunciation: (i-fek'tur), [key] — n. effector (def. 1). Random House Unabridged Dictionary, Copyright © 1997, by Random House, Inc., on Infoplease. See also: effecter (Thesaurus) effect effective Related Content Daily Word Quiz: cetacean Analogy of the Day: Today’s Analogy Spelling Bee: Today’s Spelling Bee Frequently Misspelled Words Frequently Mispronounced Words Easily Confused Words Writing & Language