Rotation

the act of rotating; a turning around as on an axis.

Astronomy .

the movement or path of the earth or a heavenly body turning on its axis.

one complete turn of such a body.

regularly recurring succession, as of officials.

Agriculture . crop rotation.

Mathematics .

an operation that rotates a geometric figure about a fixed point.

curl ( def. 17 ) .

Pool . a game in which the balls are played in order by number.

Baseball . pitching rotation.

noun

circuit , circulation , circumvolution , gyration , turn , wheel , whirl , alternation , interchange , cycle , eddy , revolution , spin , succession , torque , turning , vortex