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1. (n.) precession
the act or fact of preceding; precedence.
2. precession
the movement of the axis of rotation of a spinning body around another axis, outside the body and at an angle to it: an effect exhibited by a spinning top or gyroscope.
3. precession
the slow, conical motion of the earth's axis of rotation caused by forces exerted on the earth by the sun and moon and responsible for the precession of the equinoxes.
Etymology: (1300–50; < LL praecessiō a going before, advance, der. (with -tiō -tion ) of praecēdere to precede)
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| Definition of 'precession' |
Princeton's WordNet |
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1. (noun) precession
the motion of a spinning body (as a top) in which it wobbles so that the axis of rotation sweeps out a cone
2. (noun) precession, precedence, precedency
the act of preceding in time or order or rank (as in a ceremony)
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| Definition of 'precession' |
Webster Dictionary |
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1. (noun) precession
the act of going before, or forward
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| Definition of 'precession' |
Dictionary of Military and Associated Terms |
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1. precession
See apparent precession.
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Definitions of precession 
