/ Dictionary / Index L led: Meaning and Definition of Find definitions for: led Pronunciation: (led), [key] — v. pt. and pp. of. LED Pronunciation: [key] light-emitting diode: a semiconductor diode that emits light when conducting current and is used in electronic equipment, esp. for displaying readings on digital watches, calculators, etc. Random House Unabridged Dictionary, Copyright © 1997, by Random House, Inc., on Infoplease. See also: led (Thesaurus) Lecuona Leda Related Content Daily Word Quiz: spectral Analogy of the Day: Today’s Analogy Spelling Bee: Today’s Spelling Bee Frequently Misspelled Words Frequently Mispronounced Words Easily Confused Words Writing & Language