自し然ぜん島とう

noun

natural island

Refers to an island formed by natural processes, as opposed to an artificial island (人工島). Used in geography, environmental science, and legal contexts.

See also: 人工島

• この海かい域いきには多おおくの自し然ぜん島とうが点てん在ざいしている。

  Many natural islands are scattered in this sea area.

• 自し然ぜん島とうと人じん工こう島とうでは生せい態たい系けいが大おおきく異ことなる。

  The ecosystems of natural islands and artificial islands differ greatly.