D defs.my
Entry 1 sense Webster, 1913

Bissell truck

/bĭs'-əl trŭk/ · Bis·sell truck · IPA
01 A truck for railroad rolling stock, consisting of two ordinary axle boxes sliding in guides attached to a triangular frame; -- called also …
  1. 1.
    A truck for railroad rolling stock, consisting of two ordinary axle boxes sliding in guides attached to a triangular frame; -- called also pony truck. Also: pony truck