/ Dictionary / Index E emitter: Meaning and Definition of Find definitions for: e•mit•ter Pronunciation: (i-mit'ur), [key] — n. a person or thing that emits. an electrode on a transistor from which a flow of electrons or holes enters the region between the electrodes. Random House Unabridged Dictionary, Copyright © 1997, by Random House, Inc., on Infoplease. See also: emitter (Thesaurus) emittance Emlyn 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