Dictionary.com
definitions
  • synonyms

flood plain

or flood·plain

See more synonyms for flood plain on Thesaurus.com
noun
  1. a nearly flat plain along the course of a stream or river that is naturally subject to flooding.
Show More

Origin of flood plain

First recorded in 1870–75
Dictionary.com Unabridged Based on the Random House Unabridged Dictionary, © Random House, Inc. 2018

Related Words

delta, floodplain

Examples from the Web for flood plain

Historical Examples


British Dictionary definitions for flood plain

flood plain

noun
  1. the flat area bordering a river, composed of sediment deposited during flooding
Show More
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