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1. Oxford American Dictionary

   nutation

   • IPA[no͞oˈtāSH(ə)n]

   美式

   • n.
     a periodic variation in the inclination of the axis of a rotating object.；a periodic oscillation of the earth's axis that causes the precession of the poles to follow a wavy rather than a circular path.

   • noun: nutation

2. • 釋義

   n.

   名詞

   • 1. a periodic variation in the inclination of the axis of a rotating object.
   • ▪ a periodic oscillation of the earth's axis that causes the precession of the poles to follow a wavy rather than a circular path.
   • ▪ the circular swaying movement of the tip of a growing shoot.
3. • 更多解釋

   nutation

   • IPA[njuːˈteɪʃn]

   英式

   • n.
     a periodic variation in the inclination of the axis of a rotating object.

   Oxford Dictionary