资料来源 : Webster's Revised Unabridged Dictionary (1913)

Conestoga wagon \Con`es*to"ga wag`on\ or wain \wain\ [From
   Conestoga, Pennsylvania.]
   A kind of large broad-wheeled wagon, usually covered, for
   traveling in soft soil and on prairies.

资料来源 : WordNet®

Conestoga wagon
     n : a large wagon with broad wheels and an arched canvas top;
         used by the United States pioneers to cross the prairies
         in the 19th century [syn: {covered wagon}, {Conestoga}, {prairie
         wagon}, {prairie schooner}]