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a nearly flat plain along the course of a stream or river that is naturally subject to flooding.
the flat area bordering a river, composed of sediment deposited during flooding

also flood plain, 1873, from flood (n.) + plain (n.).
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.


Read Also:

  • Flood-wall

    noun 1. Civil Engineering. a wall built along a shore or bank to prevent floods by giving a raised, uniform freeboard and by allowing unimpeded flow to water in a channel.

  • Floodwater

    [fluhd-waw-ter, -wot-er] /ˈflʌdˌwɔ tər, -ˌwɒt ər/ noun 1. the that overflows as the result of a .

  • Floodway

    [fluhd-wey] /ˈflʌdˌweɪ/ noun 1. the channel and adjacent shore areas under water during a , especially as determined for a flood of a given height. floodway (flŭd’wā’) A channel for an overflow of water caused by flooding.

  • Flooey

    [floo-ee] /ˈflu i/ adjective, Slang. 1. amiss or awry. Related Terms go blooey

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