Definition of cantilever noun from the Oxford Advanced Learner's Dictionary

 

cantilever

 noun
noun
BrE BrE//ˈkæntɪliːvə(r)//
 
; NAmE NAmE//ˈkæntɪliːvər//
 
Structures
 
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a long piece of metal or wood that sticks out from a wall to support the end of a bridge or other structure a cantilever bridge See related entries: Structures Word Origin mid 17th cent.: of unknown origin.
See the Oxford Advanced American Dictionary entry: cantilever