AUSTRALIA, n. A country lying in the South Sea, whose industrial and commercial development has been unspeakably retarded by an unfortunate dispute among geographers as to whether it is a continent or an island.
Digon (Wikipedia)In geometry, a bigon, digon, or a 2-gon, is a polygon with two sides (edges) and two vertices. Its construction is degenerate in a Euclidean plane because either the two sides would coincide or one or both would have to be curved; however, it can be easily visualised in elliptic space. It may also be viewed as a representation of a graph with two vertices, see “Generalized polygon”.