/ Dictionary / Index L Luminaire: Meaning and Definition of Find definitions for: Lu•mi•naire Pronunciation: (l"mu-nâr'), [key] — Trademark. Trademark. a lighting unit consisting of one or more electric lamps with all of the necessary parts and wiring. Random House Unabridged Dictionary, Copyright © 1997, by Random House, Inc., on Infoplease. Lumière Luminal Related Content Daily Word Quiz: exasperate Analogy of the Day: Today’s Analogy Spelling Bee: Today’s Spelling Bee Frequently Misspelled Words Frequently Mispronounced Words Easily Confused Words Writing & Language