1. (

• rotation ,
• rotary_motion

) the act of rotating as if on an axis; "the rotation of the dancer kept time with the music" ;

2. (

• rotation

) (mathematics) a transformation in which the coordinate axes are rotated by a fixed angle about the origin ;

3. (

• rotation ,
• revolution ,
• gyration

) 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" ;

4. (

• rotation

) 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" ;