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English definition of “tractor-trailer”

tractor-trailer

noun [C]  /ˈtræk·tər ˈtreɪ·lər/ us  
a powerful vehicle for moving heavy loads, esp. over long distances, consisting of a separate part at the front for the driver attached to a large rectangular container on wheels
(Definition of tractor-trailer from the Cambridge Academic Content Dictionary © Cambridge University Press)
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