power car

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power car (plural power cars)

  1. A vehicle that propels, and commonly also controls, a passenger train or tram, often as the lead vehicle.
    • 1960 September, “Inter-city diesel units for the Hull-Liverpool service of the N.E.R.”, in Trains Illustrated, page 560:
      The inner power cars are brake second class compartment coaches; the guard has means of both bell and two-way telephone communication with the driving compartment.
    Antonym: trailer car
  2. A vehicle equipped with machinery for supplying heat or electrical power to other parts of a train.