1. Navigation by means of, or assisted by, positional information transmitted via satellite; a method or system of navigating using such information. Cf. satellite navigation n. at satellite n. Compounds 2, GPS n. at G n. Initialisms.In quot. 1970 as the name of a specific system developed by the United States Navy which first came into operation in 1964, and more commonly known as Transit, NAVSAT, or NNSS, (Navy Navigation Satellite System).
2. An electronic device which uses positional information from satellites to assist in vehicle navigation; (now esp.) one comprising a screen designed to be mounted on or in the dashboard of a car or other road vehicle, and which typically offers visual and audio directions to the driver for a particular route.
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