turning circle

/T ER1 N IH0 NG S ER0 K AH0 L/
noun
  1. 1

    (of a road vehicle) The circular path formed by the wheel furthest from the centre of the turn when turning to the maximum extent.

  2. 2

    The path followed by a vesselโ€™s center of gravity when it makes a complete turn of 360ยฐ with a consistent rudder angle. (FM 55-501)

  3. 3

    A place where a vehicle can turn and face in the opposite direction.

Source: https://en.wiktionary.org/wiki/turning%20circle