: the volume (as of irrigation water) that would cover one acre to a depth of one foot

Examples of acre-foot in a Sentence

Recent Examples on the Web
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Lake Mead is the largest reservoir in the U.S., capable of storing approximately 29 million acre-feet of water. Joe Edwards, MSNBC Newsweek, 6 July 2025 The plant’s rights can command up to 1,408 cubic feet of water per second year-round, or about 1 million acre-feet a year — enough water for 2 million to 3 million households’ annual use. Elise Schmelzer, Denver Post, 2 July 2025 This bill would set a long-term target of 9 million acre-feet of additional statewide water supply by 2040, reflecting recent California efforts to set and promote targets for housing, energy, transportation, and education. Jay Lund, Oc Register, 27 June 2025 According to state estimates, the program has helped save more than 100,000 acre-feet of groundwater by reducing pumping. Ian James, Los Angeles Times, 24 June 2025 See All Example Sentences for acre-foot

Word History

First Known Use

1889, in the meaning defined above

Time Traveler
The first known use of acre-foot was in 1889

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Cite this Entry

“Acre-foot.” Merriam-Webster.com Dictionary, Merriam-Webster, https://www.merriam-webster.com/dictionary/acre-foot. Accessed 9 Jul. 2025.

Kids Definition

acre-foot

noun
: the volume (as of irrigation water) that would cover one acre to a depth of one foot

More from Merriam-Webster on acre-foot

Last Updated: - Updated example sentences
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