enclosed bay; inlet; deep bay; basin
Geographical term for a bay that is largely surrounded by land, often with a narrow opening to the sea. Used in contexts such as oceanography, geography, and coastal descriptions.
東京湾は典型的な内湾です。
Tokyo Bay is a typical enclosed bay.
内湾の生態系は外海と異なる特徴を持っている。
The ecosystem of an enclosed bay has characteristics different from the open sea.
Compound of 内 (inside) and 湾 (bay), literally 'inner bay'. The term is used in modern Japanese geographical contexts.