Definition of nutation
1 archaic : the act of nodding the head
2 : oscillatory movement of the axis of a rotating body (as the earth) : wobble
3 : a spontaneous usually spiral movement of a growing plant part
Origin of nutation
Latin nutation-, nutatio, from nutare to nod, rock — more at numen
First Known Use: 1612
Learn More about nutation
Britannica.com: Encyclopedia article about "nutation"
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