raceway

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race·way / ˈrāsˌwā/ • n. 1. a track or channel along which something runs, in particular: ∎  a water channel, esp. an artificial one of running water in which fish are reared. ∎  a groove or race in which bearings run. ∎  a pipe or tubing enclosing electric wires.2. a track for trotting, pacing, or harness racing. ∎  a track for auto racing.