Definition of centre pivot in US English:

centre pivot

(US center pivot)

adjective

  • (attributive) designating a method of crop irrigation in which a long wheel-mounted pipe with downward-facing sprinklers along its length slowly rotates around a central well, watering a circular area typically half a mile in diameter; making use of this method.

noun

  • An irrigation unit or system which makes use of this method.

Origin

1960s; earliest use found in Beatrice (Nebraska) Daily Sun.