/ Dictionary / Index L light-rail: Meaning and Definition of Find definitions for: light-rail Pronunciation: (līt'rāl"), [key] — adj. of or pertaining to a local rail rapid-transit system using large, single passenger cars, railroad-type signals, and, usually, private rights-of-way. Random House Unabridged Dictionary, Copyright © 1997, by Random House, Inc., on Infoplease. light quantum lights Related Content Daily Word Quiz: arboreal Analogy of the Day: Today’s Analogy Spelling Bee: Today’s Spelling Bee Frequently Misspelled Words Frequently Mispronounced Words Easily Confused Words Writing & Language