traffic light
/ˈtɹæˌfɪk laɪt/ noun
Forms traffic lights
- noun A signalling device positioned at a road intersection or pedestrian crossing indicating the moment it is safe to drive, ride or walk, using a universal color code.
- noun (usually in the plural) A road intersection controlled by one or more such devices. “How do I get to the hospital? ~ You go straight on to the traffic lights, then turn left at the traffic lights and the hospital is on your right.”
- noun A colour code using the three signals of a traffic light (green, yellow or amber, and red) as a metaphor. “The Department of Health recommends that food packaging display the recommended daily intake with a traffic light system, for ease of understanding.”
- noun (philately) The colored dots on stamp sheet margins printed with offset printing or photogravure methods, used by the printers to check color accuracy.
- noun (cellular automata) In Conway's Game of Life, an arrangement of four blinkers that are orthogonally equidistant from a central point.
Synonyms
stop light traffic signal robot robot policeman lights signals stoplight
Sources: Wiktionary · WordNet 3.0 — from the Wiktionary entry “traffic light”, CC BY-SA 4.0. Details