最終更新日：2024/07/29

(geography) A plain formed by the deposition of sediment from the periodic flooding of a river.

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alluvial plain

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alluvial plain

noun

(geography) A plain formed by the deposition of sediment from the periodic flooding of a river.

The Mississippi River has created a vast alluvial plain in the southern United States.

意味（1）

(geography) A plain formed by the deposition of sediment from the periodic flooding of a river.