topography
to|pog|ra|phy /təp'ɒgrəfi/ (topographies)
1 [N-UNCOUNT]
Topography is the study and description of the physical features of an area, for example its hills, valleys, or rivers, or the representation of these features on maps.
2 [N-COUNT] usu sing, with poss
The topography of a particular area is its physical shape, including its hills, valleys, and rivers.
The topography of the river's basin has changed significantly since the floods.
1 [N-UNCOUNT]
Topography is the study and description of the physical features of an area, for example its hills, valleys, or rivers, or the representation of these features on maps.
2 [N-COUNT] usu sing, with poss
The topography of a particular area is its physical shape, including its hills, valleys, and rivers.
The topography of the river's basin has changed significantly since the floods.