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  1. rotation
  2. noun

    • 1. the action of rotating about an axis or centre:

      the moon moves in the same direction as the earth's rotation several solar rotations
      Synonym : revolving, turning, spinning, gyration, wheeling, whirling, twirling, swivelling, circling, turn, revolution, spin, whirl, orbit
    • 2. the conceptual operation of turning a system about an axis.

    • 3. another term for curl

    • 4. the passing of a privilege or responsibility to each member of a group in a regularly recurring order:

      it has become common for senior academics to act as heads of department in rotation
    • 5. the growing of different crops in succession on a piece of land to avoid exhausting the soil and to control weeds, pests, and diseases:

      traditional practices such as crop rotation
    • 6. the cycle of growth and felling or cutting of trees:

      short rotation forestry a rotation of 60–80 years to provide valuable saw timber
    • 7. a tour of duty, especially by a medical practitioner in training:

      she was completing a rotation in trauma surgery
  3. Variation

    • n.: noun: rotation, plural noun: rotations