Pronunciation: (rō-tā'shun),[key] —n. 1. the act of rotating; a turning around as on an axis.
2. Astron. a. the movement or path of the earth or a heavenly body turning on its axis.
b. one complete turn of such a body.
3. regularly recurring succession, as of officials.
4. Agric.See crop rotation. 5. Math. a. an operation that rotates a geometric figure about a fixed point.
b. curl (def. 17).
6. Pool.a game in which the balls are played in order by number.
7. Baseball.See pitching rotation.