flood·​plain | \ ˈfləd-ˌplān How to pronounce floodplain (audio) \

Definition of floodplain

1 : level land that may be submerged by floodwaters
2 : a plain built up by stream deposition

Examples of floodplain in a Sentence

Recent Examples on the Web

The extent of forest loss on the Amazon floodplain is difficult to ascertain, but is higher in more populated parts in eastern Brazil. National Geographic, "Amazon fish species at risk if fires destroy river habitat," 13 Sep. 2019 This includes: Avoid building in a floodplain—an area especially prone to flooding during heavy rains. National Geographic, "Flood safety tips," 23 July 2019 In 1993 when this area was built, these properties were not located in the 100-year floodplain. John Benson, cleveland.com, "Flooded Parma Heights residents and Brooklyn shoppers experience 500-year storm," 9 July 2019 For starters, President Jonathan Gueverra said, the college already has shifted its campus so most of it lies above the floodplain, in addition to building high enough off the ground to keep out encroaching water. Max Cohen, USA TODAY, "'Let's double down.' Climate change could put these colleges underwater. Why they're staying put," 1 July 2019 This map filters out zip codes in which fewer than one home per year was built in a Houston floodplain. Mike Morris, Houston Chronicle, "See where homes have been built in Houston's floodplains," 27 Mar. 2018 The area along Greens Bayou that is considered within the 25-year floodplain is significant, Vega said, and the water comes out of its banks relatively often. Melanie Feuk, Houston Chronicle, "Kuykendahl basin to blend nature with flood reduction efforts," 6 Sep. 2019 In Creede, about 50 miles southeast of Lake City, waters have taken over the floodplain but haven’t threatened any structures, said Kathleen Murphy, director of the town’s chamber of commerce. Elise Schmelzer, The Denver Post, "18,000 sandbags later, Lake City flood fears diminish even as rivers rise across southwestern Colorado," 16 June 2019 Nationwide, only about a third of all homes in the floodplain have flood insurance, according to Kaniewski. Christopher Flavelle, BostonGlobe.com, "Even as floods worsen with climate change, fewer people insure against disaster," 8 June 2019

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

1873, in the meaning defined at sense 1

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Statistics for floodplain

Last Updated

10 Oct 2019

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Time Traveler for floodplain

The first known use of floodplain was in 1873

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English Language Learners Definition of floodplain

: an area of low, flat land along a stream or river that may flood
: an area of land built up from soil left by floods


flood·​plain | \ ˈfləd-ˌplān How to pronounce floodplain (audio) \

Kids Definition of floodplain

: low flat land along a stream that is flooded when the stream overflows

More from Merriam-Webster on floodplain

Rhyming Dictionary: Words that rhyme with floodplain

Britannica.com: Encyclopedia article about floodplain

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