s, a, b, d, e, g, n, r, i are letters that make 'drainage basin'
age, BA, si, Ba, Ag, rain, SI, ain, as, in, drain, drainage, sin, AI, nag, ai, basin, RA, AS, IN, Ra, Sin, As, Ge, In, Si, Na, Asin are words within 'drainage basin'
1 possible definitions for 'drainage basin'
Under this definition, drainage basin is a noun and has the following properties:
river basin, catchment area, drainage area, catchment basin, basin, watershed have the same meaning as 'drainage basin'
'drainage basin' can be a type of geographical area, geographic area, geographical region, geographic region.
detention basin, retention basin are types of 'drainage basin'.