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precession

play
noun pre·ces·sion \prē-ˈse-shən\

Definition of precession

  1. :  a comparatively slow gyration of the rotation axis of a spinning body about another line intersecting it so as to describe a cone

pre·ces·sion·al play \-ˈsesh-nəl, -ˈse-shə-nəl\ adjective


Origin of precession

New Latin praecession-, praecessio, from Medieval Latin, act of preceding, from Latin praecedere to precede


First Known Use: 1879


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