acre-foot

(redirected from Acre foot)
Also found in: Dictionary, Thesaurus, Financial, Acronyms, Wikipedia.

acre-foot

[′ā·kər ′fu̇t]
(hydrology)
The volume of water required to cover 1 acre to a depth of 1 foot, hence 43,560 cubic feet; a convenient unit for measuring irrigation water, runoff volume, and reservoir capacity.

acre-foot

The amount of water required to cover an area of 1 acre to a depth of 1 foot; equivalent to 43,560 cubic feet (4046.9 m3); sometimes used as a measure of materials in place (e.g., gravel).