floodplain
noun
flood·plain
ˈfləd-ˌplān 
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
Hart Park lies on a floodplain and is surrounded by a flood levy built by the Milwaukee Metropolitan Sewerage District following flooding over two decades ago.
—
Bridget Fogarty, jsonline.com, 22 Aug. 2025
High levels of development and the growth of informal communities in the floodplain on the Sonora side puts people in harm’s way.
—Andrew Freedman, CNN Money, 24 July 2025
After Wimberley's flood in 2015, Texas Gov. Greg Abbott transferred $6.8 million from a state disaster contingency fund for statewide floodplain management, as well as more river gauges, which monitor the level of the water and send real-time information to weather alert systems.
—Kat Lonsdorf, NPR, 16 July 2025
Brad Dushkin, the city’s director of planning and development services, said that before construction can begin, the applicant is required to conduct a floodplain analysis.
—Lillian Vest, Austin American Statesman, 15 July 2025
See All Example Sentences for floodplain
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Bridget Fogarty, jsonline.com, 22 Aug. 2025
High levels of development and the growth of informal communities in the floodplain on the Sonora side puts people in harm’s way.
—Andrew Freedman, CNN Money, 24 July 2025
After Wimberley's flood in 2015, Texas Gov. Greg Abbott transferred $6.8 million from a state disaster contingency fund for statewide floodplain management, as well as more river gauges, which monitor the level of the water and send real-time information to weather alert systems.
—Kat Lonsdorf, NPR, 16 July 2025
Brad Dushkin, the city’s director of planning and development services, said that before construction can begin, the applicant is required to conduct a floodplain analysis.
—Lillian Vest, Austin American Statesman, 15 July 2025
See All Example Sentences for floodplain
Cite this Entry
“Floodplain.” Merriam-Webster.com Dictionary, Merriam-Webster, https://www.merriam-webster.com/dictionary/floodplain. Accessed 28 Aug. 2025.
Copy CitationKids Definition
floodplain
noun
flood·plain
-ˌplān
1
: low flat land along a stream or river that may flood
2
: a plain built up from earth left by floodwaters
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