D defs.my
Entry 1 sense Webster, 1913

Conestoga wagon

/känˌ-əs-tōg'-ə wăg'-ən/ · Con·es·to·ga wag·on · IPA
01 A kind of large broad-wheeled wagon, usually covered, for traveling in soft soil and on prairies.
  1. 1.
    A kind of large broad-wheeled wagon, usually covered, for traveling in soft soil and on prairies.