Definitions for racewayˈreɪsˌweɪ
Random House Webster's College Dictionary
a track on which harness races are held.
a channel for protecting and holding electrical wires.
Origin of raceway:
a canal for a current of water
racetrack, racecourse, raceway, track(noun)
a course over which races are run
A place where races are held. A racetrack.
An easily-accessible conduit or tray for organizing runs of data or power cabling.