tractor unit

Etymology
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Noun

 * 1) a large road vehicle, usually consisting of a two or three-axled chassis, and fitted with a cab, engine and drivetrain, used for hauling semitrailers.

Synonyms

 * (sense 2)

Translations

 * German:, ,
 * Norwegian:
 * Bokmål: trekkvogn
 * Nynorsk: trekkvogn
 * Polish: