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Meaning of word drainage area from English dictionary with examples, synonyms and antonyms.

drainage area   noun

Meaning : The entire geographical area drained by a river and its tributaries. An area characterized by all runoff being conveyed to the same outlet.

Example : Flood control in the Missouri basin.

Synonyms : basin, catchment area, catchment basin, drainage basin, river basin, watershed

Drainage area meaning in Bengali (Bangla).