insular areaglossary / INSULAR AREA insular area. A territory or commonwealth. • This phrase is used by some writers to denote the genus of which the terms territory and commonwealth are species. See COMMONWEALTH(2); TERRITORY(1). 词条贡献者 专业法律翻译郭敏,毕业于欧洲顶尖的高级翻译学院,专注翻译各类与复杂保险交易有关的法律文件。