precession

noun pre·ces·sion \ prē-ˈse-shən \

Definition of precession

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

precessional

play \-ˈsesh-nəl, -ˈse-shə-nᵊl\ adjective

Recent Examples of precession from the Web

These example sentences are selected automatically from various online news sources to reflect current usage of the word 'precession.' Views expressed in the examples do not represent the opinion of Merriam-Webster or its editors. Send us feedback.

Origin and Etymology of precession

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


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