a, d, e, g, n, r, i are letters that make 'drainage area'
age, re, Ag, rain, are, ar, Ea, ain, in, drain, drainage, AI, nag, ai, area, RA, AR, IN, Ra, Re, Ar, Ge, In, Na are words within 'drainage area'
1 possible definitions for 'drainage area'
Under this definition, drainage area is a noun and has the following properties:
river basin, drainage basin, catchment area, catchment basin, basin, watershed have the same meaning as 'drainage area'
'drainage area' can be a type of geographical area, geographic area, geographical region, geographic region.
detention basin, retention basin are types of 'drainage area'.