drainage basin
noun
the area drained by a river and all its tributaries.
Also called catchment area, drainage area.Compare watershed(def 2).
Origin of drainage basin
An Americanism dating back to 1880–85
Words nearby drainage basin
drahthaar,
drail,
drain,
drain rod,
drainage,
drainage basin,
drainage tube,
drainage wind,
drainageway,
drainboard,
drainer
Example sentences from the Web for drainage basin
Taken as a whole, the Two Medicine drainage-basin is an epitome of Glacier in miniature.
The Book of the National Parks |Robert Sterling Yard
British Dictionary definitions for drainage basin
Scientific definitions for drainage basin
drainage basin
[ drā′nĭj ]
An area drained by a river system. A drainage basin includes all areas that gather precipitation water and direct it to a particular stream, stream system, lake, or other body of standing water.