/ Dictionary / Index T trolley car: Meaning and Definition of Find definitions for: trol'ley car" Pronunciation: [key] a streetcar propelled electrically by current taken by means of a trolley from a conducting wire strung overhead or running beneath a slot between the tracks. Random House Unabridged Dictionary, Copyright © 1997, by Random House, Inc., on Infoplease. trolley bus trolley line Related Content Daily Word Quiz: clairvoyant Analogy of the Day: Today’s Analogy Spelling Bee: Today’s Spelling Bee Frequently Misspelled Words Frequently Mispronounced Words Easily Confused Words Writing & Language