/ Dictionary / Index S skeleton car: Meaning and Definition of Find definitions for: skel'eton car" Pronunciation: [key] — Railroads. Railroads. a freight car essentially consisting of a central longitudinal girder fastened to the trucks, sometimes supplemented by one or more pairs of cross cantilevers: used for carrying logs or containers. Random House Unabridged Dictionary, Copyright © 1997, by Random House, Inc., on Infoplease. skeleton skeletonize Related Content Daily Word Quiz: ounterfeit Analogy of the Day: Today’s Analogy Spelling Bee: Today’s Spelling Bee Frequently Misspelled Words Frequently Mispronounced Words Easily Confused Words Writing & Language