西せい南なん日本にほん

noun

southwest Japan

Geographic term for the region southwest of the Itoigawa-Shizuoka Tectonic Line, often contrasted with 東北日本 (northeast Japan).

See also: 東北日本

• 西せい南なん日本にほんは地ち質しつ学がく的てきに東とう北ほく日本にほんと区く別べつされる。

  Southwest Japan is geologically distinguished from Northeast Japan.