area on the concave side of a mountain arc or a crescent-shaped archipelago 内帯 [ないたい] /(n) (1) (See 外帯・1) area on the concave side of a mountain arc or a crescent-shaped archipelago/(2) (See 西南日本内帯) area of southwestern Japan north of the Median Tectonic Line/EntL2605750/ |