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Noun: semitrailer  'se-mee,trey-lur
Usage: N. Amer (elsewhere: trailer)
  1. A trailer having wheels only in the rear; the front is supported by the towing vehicle
    - semi [N. Amer, informal], trailer

Derived forms: semitrailers

Type of: trailer

Part of: articulated lorry [Brit], rig [N. Amer], semi [N. Amer, informal], tractor trailer, trailer truck, trucking rig

Encyclopedia: Semitrailer