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troffer

[ trof-er, traw-fer ]
/ ˈtrɒf ər, ˈtrɔ fər /
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noun
a trough-shaped reflector holding one or more fluorescent lamps.
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Origin of troffer

1940–45; troff (variant of trough) + -er1
Dictionary.com Unabridged Based on the Random House Unabridged Dictionary, © Random House, Inc. 2021
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