Global Positioning System
(plural global positioning systems)
From the proper noun Global Positioning System.
This entry is of a proper noun, which refers to a specific (the first one) global positioning system, now only one of many.
global positioning system - Computer Definition
Gives the exact location of someone or some place. The location is based on information transmitted from a constellation of 24 satellites.
See Also: Global Navigation Satellite System (GLONASS).
Further Readings: Navtech Seminars and GPS Supply, Inc. Glossary of Terms. [Online, 2004.] Navtech Seminars and GPS Supply, Inc. Website. http://www.navtechgps.com/glossary.asp.