Category:Rotation

Ro*ta"tion, n. Etym: [l. rotatio: cf. F. rotation.]

1. 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.

2. 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.

Rotation Ro*ta"tion, a.

Defn: pertaining to, or resulting from, rotation; of the nature of, Or characterized by, rotation; as, rotational velocity.