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Entry 3 senses · 2 variants Webster, 1913

Rotation

/rōt-āsh'-ən/ · Ro·ta·tion · IPA /ɹoʊˈteɪʃən/
01 n. 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 …
  1. 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. 2.
    Any return or succesion in a series.
Phrases & compounds
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.
02 a. Pertaining to, or resulting from, rotation; of the nature of, or characterized by, rotation; as, rotational velocity.
  1. 1.
    Pertaining to, or resulting from, rotation; of the nature of, or characterized by, rotation; as, rotational velocity.