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acre-foot

[ ey-ker-foot ]

noun

  1. a unit of volume of water in irrigation: the amount covering one acre to a depth of one foot, equal to 43,560 cubic feet.

acre-foot

noun

  1. the volume of water that would cover an area of 1 acre to a depth of 1 foot: equivalent to 43 560 cubic feet or 1233.5 cubic metres

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Word History and Origins

Origin of acre-foot1

An Americanism dating back to 1900–05

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