- The definition of a troffer is a long recessed light fixture, especially on in the ceiling or for a fluorescent light.
An example of a troffer is a fluorescent light fixture recessed in the ceiling.
troffer definition by Webster's New World
Webster's New World College Dictionary Copyright © 2010 by Wiley Publishing, Inc., Cleveland, Ohio. Used by arrangement with John Wiley & Sons, Inc.
a ceiling recess like an inverted trough with its bottom next to the ceiling: used esp. to enclose fluorescent lamps
Origin: altered ; from trough plush -er
troffer definition by American Heritage Dictionary
An inverted, usually metal trough suspended from a ceiling as a fixture for fluorescent lighting tubes.
Origin: Alteration of trough.