flood plain
or floodplain
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noun
a nearly flat plain along the course of a stream or river that is naturally subject to flooding.
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CUDDLE UP! A COZY QUIZ ON FALL WORDS HAS ARRIVED
If autumn is your ideal season, spice up your repertoire of "fall" vocabulary with this quiz on some warm and vivid descriptive words for the season.
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Which of the following words means “to make a crackling sound; crackle”?
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Origin of flood plain
First recorded in 1870–75
Dictionary.com Unabridged
Based on the Random House Unabridged Dictionary, © Random House, Inc. 2021
How to use flood plain in a sentence
Spring Creek and Union Creek are short and have formed no extensive floodplain.
Fishes of Chautauqua, Cowley and Elk Counties, Kansas|Artie L. Metcalf
British Dictionary definitions for flood plain
flood plain
noun
the flat area bordering a river, composed of sediment deposited during flooding
Collins English Dictionary - Complete & Unabridged 2012 Digital Edition
© William Collins Sons & Co. Ltd. 1979, 1986 © HarperCollins
Publishers 1998, 2000, 2003, 2005, 2006, 2007, 2009, 2012
Scientific definitions for flood plain
floodplain
[ flŭd′plān′ ]
Flat land bordering a river and made up of alluvium (sand, silt, and clay) deposited during floods. When a river overflows, the floodplain is covered with water.
The American Heritage® Science Dictionary
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