Dictionary
Words, grammatical forms and meanings linked to the ontology.
troffer en · NOUN
Meanings
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A rectangular, trough-shaped light fixture, typically for mounting in or on a ceiling to light the area below, and usually containing two or three fluorescent bulbs.
Each fluorescent troffer in the room contained three lamps and two ballasts.
Flexibility for troffer systems may be planned in the original layout by coordinating the over-all ceiling pattern with the modular size of troffer.
1956, National Research Council, Design for environment: floor, ceilings, and service systems in multi-story buildings, page 36:
Forms