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reversing light
backup light
signal light carried on a vehicle to illuminate the way behind the vehicle and to indicate rearwards an intended, or actual, backward movement by the vehicle
Note 1 to entry: This entry was numbered 845-11-77 in IEC 60050-845:1987.
Note 2 to entry: This entry was numbered 17-1108 and 17-70 in CIE S 017:2011.