Rotation (aviation) definition

(1) The act of rotating as if on an axis

"The rotation of the dancer kept time with the music"

(2) 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"

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