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| nu·ta·tion [ noo táysh'n ] |
noun |
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| Definition: |
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1. astronomy wobbly rotation: the wobbly rotation of a spinning object, especially a planet, caused by a temporary shift in the position of its axis
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2. botany irregular growth of plant: a spiral movement of a plant part caused by varying growth rates on each side
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3. nodding: the nodding of somebody's head
(
formal
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| [Early 17th century. < Latin nutation-< past participle of nutare "nod"] |
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 nu·ta·tion·al adjective |
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