ground·​wa·​ter | \ ˈgrau̇nd-ˌwȯ-tər , -ˌwä-\

Definition of groundwater

: water within the earth especially that supplies wells and springs

Examples of groundwater in a Sentence

There were concerns about contaminated groundwater.

Recent Examples on the Web

Over 2 billion people around the globe use groundwater as their primary source of water. David Grossman, Popular Mechanics, "Climate Change Could Turn Earth's Aquifers Into a Time Bomb," 22 Jan. 2019 Nitrate concentrations rose significantly in 21% of regions where USGS researchers tested groundwater from 2002 through 2012, compared with the 13 prior years. Jesse Newman And Patrick Mcgroarty, WSJ, "Farms, More Productive Than Ever, Are Poisoning Drinking Water in Rural America," 18 Jan. 2019 In March, the DNR asked the Department of Health Services to recommend safe levels for 16 substances found in groundwater, including PFOA and PFOS. Lee Bergquist, Milwaukee Journal Sentinel, "Johnson Controls unit expands offer to treat tainted water tied to Marinette plant," 11 July 2018 When magma levels at Kilauea’s summit drop, the magma can heat groundwater and cause explosive eruptions, which is what scientists think has happened at Kilauea over the past several weeks. Doyle Rice, USA TODAY, "Volcano 'music' could help scientists monitor eruptions," 18 June 2018 Water treatment equipment still works around the clock on site to clean groundwater before pumping it into the nearby Quinnipiac River. Bill Leukhardt, Courant Community, "Road Work Will Connect Farmington Canal Trail Sections In Southington," 4 May 2018 The groundwater interacts with the hot rock, and steam pressure builds and can cause explosions. Phil Gast And Brandon Miller, CNN, "In 1924, explosions on Kilauea sent tons of rock flying. Will that happen again?," 9 May 2018 But the key to his success in the rural district was his stance on groundwater. Antonia Noori Farzan, The Seattle Times, "Dennis Hof, deceased brothel owner dubbed the ‘Trump of Pahrump,’ wins state assembly seat in Nevada," 7 Nov. 2018 And while Ghaemi is very enthusiastic about the potential of groundwater lithium, other researchers are more wary. Dylan Matthews, Vox, "How our drinking water could help prevent suicide," 24 Oct. 2018

These example sentences are selected automatically from various online news sources to reflect current usage of the word 'groundwater.' Views expressed in the examples do not represent the opinion of Merriam-Webster or its editors. Send us feedback.

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First Known Use of groundwater

circa 1889, in the meaning defined above

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Statistics for groundwater

Last Updated

5 Feb 2019

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Time Traveler for groundwater

The first known use of groundwater was circa 1889

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English Language Learners Definition of groundwater

: water that is underground

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Rhyming Dictionary: Words that rhyme with groundwater

Nglish: Translation of groundwater for Spanish Speakers Encyclopedia article about groundwater

Comments on groundwater

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to deny responsibility for

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