【上位】 a change of position that does not entail a change of location; "the reflex motion of his eyebrows revealed his surprise"; "movement is a sign of life"; "an impatient move of his hand"; "gastrointestinal motility" 場所の変化を伴わない体勢の変化。
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a single complete turn (axial or orbital); "the plane made three rotations before it crashed"; "the revolution of the earth about the sun takes one year" 1回の完全な回転（軸であるか軌道の）。
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【下位】 motion of an object in an orbit around a fixed point; "satellites in orbital rotation" 固定点の軌道の物体の運動。
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【下位】 a swift whirling motion (usually of a missile) （通例ミサイルの）素早く回る動き。
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a planned recurrent sequence (of crops or personnel etc.); "crop rotation makes a balanced demand on the fertility of the soil"; "the manager had only four starting pitchers in his rotation" （作物または人員等）の計画された再発順序。
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