tractor trailer
noun
variants
or tractor-trailer
US
: a large truck with a long trailer attached to the back of it : semitrailer
Cite this Entry
“Tractor trailer.” Merriam-Webster.com Dictionary, Merriam-Webster, https://www.merriam-webster.com/dictionary/tractor%20trailer. Accessed 11 Jul. 2025.
Copy CitationLove words? Need even more definitions?
Merriam-Webster unabridged
Share