群岛弧 Traditional form: 群島弧 Pinyin (reading): qúndǎohú Definitions: island arc (geology) Characters: 群 - group, crowd; multitude, mob 岛 - island 弧 - arc, crescent; wooden bow Traditional characters: 群 - group, crowd; multitude, mob 島 - island 弧 - arc, crescent; wooden bow