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
In other places, floodplains have been reconnected to rivers to provide more space for floodwaters to spread out.
—
Jeff Opperman, Forbes, 4 Mar. 2025
Rather, it must be elevated to the current floodplain (and updated to current building code standards) or demolished and replaced.
—Jeff Weiner, Axios, 21 Feb. 2025
Strata recorded several types of zones for the development, ranging from floodplains to moderate or steeply sloping areas.
—Nick Rosenberger, Idaho Statesman, 17 Feb. 2025
The Lower Mississippi Valley is the nation's largest floodplain, covering more than 24 million acres across portions Arkansas, Illinois, Kentucky, Louisiana, Mississippi, Missouri and Tennessee.
—Eric Lagatta, USA TODAY, 16 Feb. 2025
See All Example Sentences for floodplain
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Jeff Opperman, Forbes, 4 Mar. 2025
Rather, it must be elevated to the current floodplain (and updated to current building code standards) or demolished and replaced.
—Jeff Weiner, Axios, 21 Feb. 2025
Strata recorded several types of zones for the development, ranging from floodplains to moderate or steeply sloping areas.
—Nick Rosenberger, Idaho Statesman, 17 Feb. 2025
The Lower Mississippi Valley is the nation's largest floodplain, covering more than 24 million acres across portions Arkansas, Illinois, Kentucky, Louisiana, Mississippi, Missouri and Tennessee.
—Eric Lagatta, USA TODAY, 16 Feb. 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 13 Mar. 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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