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nutation

play
noun nu·ta·tion \nü-ˈtā-shən, nyü-\

Definition of nutation

  1. 1 archaic :  the act of nodding the head

  2. 2 :  oscillatory movement of the axis of a rotating body (as the earth) :  wobble

  3. 3 :  a spontaneous usually spiral movement of a growing plant part

nu·ta·tion·al play \-shnəl, -shə-nəl\ adjective


Origin of nutation

Latin nutation-, nutatio, from nutare to nod, rock — more at numen


First Known Use: 1612


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