18-wheeler
noun
18-wheel·er ˌā(t)-(ˌ)tēn-ˈwē-lər 
variants or eighteen-wheeler
: a trucking rig consisting of a tractor and a trailer and typically having eighteen wheels
Word History
First Known Use
1934, in the meaning defined above
- consiglieri
- consign
- consignable
- consignatary
- consignation
- consignations
- consignatories
- consigned
- consignee
- consignees
- consigners
- consignificant
- consignification
- consignificative
- consignified
- consignifies
- consignify
- consignifying
- consigning
- consignment
- consignment note
- consignment store
- consignments
- consignor
- consignors