Topology

(noun.) the configuration of a communication network.

(noun.) the branch of pure mathematics that deals only with the properties of a figure X that hold for every figure into which X can be transformed with a one-to-one correspondence that is continuous in both directions.

(noun.) topographic study of a given place (especially the history of the place as indicated by its topography); 'Greenland's topology has been shaped by the glaciers of the ice age'.

亚伯整理