from The American Heritage® Dictionary of the English Language, 4th Edition
- n. The component of force acting on a body in curvilinear motion that is directed toward the center of curvature or axis of rotation. Centripetal force is necessary for an object to move with circular motion.
from Wiktionary, Creative Commons Attribution/Share-Alike License
- n. The force on a rotating or orbiting body in the direction of the centre of rotation.
from the GNU version of the Collaborative International Dictionary of English
- adj. a force whose direction is towards a center, as in case of a planet revolving round the sun, the center of the system, See Centrifugal force, under Centrifugal.
from WordNet 3.0 Copyright 2006 by Princeton University. All rights reserved.
- n. the inward force on a body moving in a curved path around another body
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