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troffer

noun
trof·​fer | \ ˈträ-fər How to pronounce troffer (audio) , ˈtrȯ-\

Definition of troffer

: an inverted trough serving as a support and reflector usually for a fluorescent lighting unit

First Known Use of troffer

1942, in the meaning defined above

History and Etymology for troffer

blend of trough and coffer

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