rain·wa·ter | \ ˈrān-ˌwȯ-tər , -ˌwä- \

Definition of rainwater 

(Entry 1 of 2)

: water fallen as rain that has not collected soluble matter from the soil and is therefore soft


biographical name
Rain·wa·ter | \ ˈrān-ˌwȯ-tər , -ˌwä- \

Definition of Rainwater (Entry 2 of 2)

L(eo) James 1917–1986 American physicist

Examples of rainwater in a Sentence


a bucket filled with rainwater

Recent Examples on the Web: Noun

Sinkholes appear when rainwater loosens sediment beneath the ground; Washington D.C.’s (literal) swampiness appears to make the city vulnerable to this phenomenon. Benjamin Hart, Daily Intelligencer, "Sinkhole/Possible Metaphor Appears Outside White House," 22 May 2018 Work is ongoing to improve drainage in the park by expanding two existing ponds into two larger stormwater wetlands with native vegetation and plantings that will retain and filter rainwater. Michelle Mullins, Daily Southtown, "Homer Glen OKs $2.6 million for new playground, sensory garden; work to begin soon," 13 July 2018 Runoff wastes valuable irrigation and rainwater and can wash fertilizers, pesticides and soil downstream, which can harm fish and other wildlife. Dawn Standke, sandiegouniontribune.com, "Tally up your garden’s earth friendliness," 12 July 2018 By 2002, the alarmed Friends of the Uptown group was calling reporters with stories of falling plaster and pooling rainwater. Chris Jones, chicagotribune.com, "Uptown Theatre will be restored: $75 million plan unveiled for grand palace on North Side," 28 June 2018 The eggs can sit dormant for years, Prendergast said, just waiting for a surge of rainwater. Scott Dance, Washington Post, "Mosquitoes are at three times their normal number in Maryland this summer," 5 July 2018 The eggs can sit dormant for years at a time, Prendergast said, just waiting for a surge of rainwater. Scott Dance, baltimoresun.com, "Dealing with more bug bites than usual? Mosquitos are at 3 times their normal number in Maryland this summer.," 5 July 2018 On Wednesday, Thai teams constructed dams in an effort to prevent more rainwater from flowing into the cave. Eli Meixler, Time, "International Experts from the U.S. and U.K. Join the Search for 12 Missing Thai Boys and Their Coach," 28 June 2018 Joe didn't know about the calamitous crack between the windshield and the hood until a seam in the sky split open in the Cuyamaca Mountains between San Diego and Yuma and sheets of rainwater gushed into the car and soaked our feet. Lauren Oster, Redbook, "A Spontaneous Road Trip With My Husband Changed My Life," 26 June 2018

These example sentences are selected automatically from various online news sources to reflect current usage of the word 'rainwater.' 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 rainwater


before the 12th century, in the meaning defined above

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Statistics for rainwater

Last Updated

3 Sep 2018

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Time Traveler for rainwater

The first known use of rainwater was before the 12th century

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English Language Learners Definition of rainwater

: water that falls as rain


rain·wa·ter | \ ˈrān-ˌwȯ-tər , -ˌwä- \

Kids Definition of rainwater

: water from rain

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an open space surrounded by woods

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