alluvial plain

See more synonyms for alluvial plain on Thesaurus.com

noun

a level or gently sloping surface formed of sediments laid down by streams, generally during flooding.

Origin of alluvial plain

First recorded in 1955–60

Dictionary.com Unabridged Based on the Random House Unabridged Dictionary, © Random House, Inc. 2018

Related Words for alluvial plain

delta, floodplain