The Collaborative International Dictionary
Rotation \Ro*ta"tion\, n. [L. rotatio: cf. F. rotation.]
The act of turning, as a wheel or a solid body on its axis, as distinguished from the progressive motion of a revolving round another body or a distant point; thus, the daily turning of the earth on its axis is a rotation; its annual motion round the sun is a revolution.
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Any return or succesion in a series.
Moment of rotation. See Moment of inertia, under Moment.
Rotation in office, the practice of changing public officers at frequent intervals by discharges and substitutions.
Rotation of crops, the practices of cultivating an orderly succession of different crops on the same land.
Usage examples of "rotation in office".
The second feature I dislike, and greatly dislike, is the abandonment in every instance of the necessity of rotation in office, and most particularly in the case of the President.