center-pivot irrigation

[ sen-ter-piv-uh t ]
/ ˈsɛn tərˌpɪv ət /

noun

a method of irrigation, used mainly in the western U.S., in which water is dispersed through a long, segmented arm that revolves about a deep well and covers a circular area from a quarter of a mile to a mile in diameter.

Origin of center-pivot irrigation

First recorded in 1970–75
Dictionary.com Unabridged Based on the Random House Unabridged Dictionary, © Random House, Inc. 2019