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- DictionaryRo·ta·tion/rōˈtāSHən/
noun
- 1. the action of rotating around an axis or center: "the moon moves in the same direction as the earth's rotation"
noun
Rotation or rotational motion is the circular movement of an object around a central line, known as axis of rotation. A plane figure can rotate in either a clockwise or counterclockwise sense around a perpendicular axis intersecting anywhere inside or outside the figure at a center of rotation. A solid figure has an infinite number of possible axes and angles of rotation, including chaotic rotatio... Wikipedia