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free enterprise system
(Encyclopedia)free enterprise system: see capitalism. ...Global Positioning System
(Encyclopedia)Global Positioning System: see navigation satellite. ...altazimuth coordinate system
(Encyclopedia)altazimuth coordinate system ăltăzˈəməth [key] or horizon coordinate system, astronomical coordinate system in which the position of a body on the celestial sphere is described relative to an obs...National Forest System
(Encyclopedia)National Forest System, federally owned reserves, c.191 million acres (77.4 million hectares), administered by the Forest Service of the U.S. Dept. of Agriculture. The system is made up of 155 nationa...autonomic nervous system
(Encyclopedia)autonomic nervous system: see nervous system. ...life support system
(Encyclopedia)life support system: see artificial life support; Life Support for Human Spaceflight under space science. ...parasympathetic nervous system
(Encyclopedia)parasympathetic nervous system: see nervous system. ...sympathetic nervous system
(Encyclopedia)sympathetic nervous system: see nervous system. ...transdermal delivery system
(Encyclopedia)transdermal delivery system: see skin patch. ...Space Transportation System
(Encyclopedia)Space Transportation System, official designation for the U.S. space shuttle. ...Browse by Subject
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