railcar /ˈɹeɪlˌkɑɹ/ noun3 •A self-propelled railway vehicle for passengers, similar to a bus.The semi-streamlined contour of the earlier G.W.R. railcars has been given up in favour of a more utilitarian blunt-nose end, and effective floor space gained thereby. — 1941 •(US, Canada) Any unpowered railway vehicle. •A powered single railway vehicle designed for passenger transport, with a driver's cab in both ends; Not to be confused with motor coach/motorcar, which is a powered railway vehicle capable to haul a train. formsrailcars