GPS

navigation system that works by a worldwide networks of satellites, car navigation system

The Global Positioning System (GPS) is the only fully functional Global Navigation Satellite System (GNSS). Utilizing a constellation of at least 24 medium Earth orbit satellites that transmit precise microwave signals, the system enables a GPS receiver to determine its location, speed, direction, and time.
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General practitioner n. Abbr. GP A physician whose practice consists of providing ongoing care covering a variety of medical problems in patients of [more]GPS - Community and Resources

Noun
1. a navigational system involving satellites and computers that can determine the latitude and longitude of a receiver on Earth by computing the time difference for signals from different satellites to reach the receiver
(synonym) Global Positioning System
(hypernym) navigational system

GPS, Global Positioning System, navigation system that works by a worldwide networks of satellites