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troffer

American

[trof-er, traw-fer] / ˈtrɒf ər, ˈtrɔ fər /

noun

a trough-shaped reflector holding one or more fluorescent lamps.

Etymology

Origin of troffer

1940–45; troff (variant of trough ) + -er ¹

Definitions and idiom definitions from Dictionary.com Unabridged, based on the Random House Unabridged Dictionary, © Random House, Inc. 2023

Idioms from The American Heritage® Idioms Dictionary copyright © 2002, 2001, 1995 by Houghton Mifflin Harcourt Publishing Company. Published by Houghton Mifflin Harcourt Publishing Company.