flood plain

or flood·plain


a nearly flat plain along the course of a stream or river that is naturally subject to flooding.

Origin of flood plain

First recorded in 1870–75
Dictionary.com Unabridged Based on the Random House Unabridged Dictionary, © Random House, Inc. 2019

Related Words for flood plain

delta, floodplain

Examples from the Web for flood plain

Historical Examples of flood plain

British Dictionary definitions for flood plain

flood plain


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