Source : Webster's Revised Unabridged Dictionary (1913)

Pullman car \Pull"man car`\ [Named after Mr. Pullman, who
   introduced them.]
   A kind of sleeping car; also, a palace car; -- often
   shortened to {Pullman}.

Source : WordNet®

Pullman car
     n : luxurious passenger car; for day or night travel [syn: {Pullman}]