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Noun: stoplight  'stóp,lIt
Usage: N. Amer
  1. A red light on the rear of a motor vehicle that signals when the brakes are applied to slow or stop
    - brake light
  2. A visual signal to control the flow of traffic at intersections
    - traffic light, traffic signal, robot [S.Africa]

Derived forms: stoplights

Type of: light, visual signal

Part of: brake system, brakes

Encyclopedia: Stoplight