玄武岩 Traditional form: 玄武岩 Pinyin (reading): xuánwǔyán Definitions: (geology) basalt Characters: 玄 - deep, profound, abstruse 武 - military; martial, warlike 岩 - cliff; rocks; mountain Traditional characters: 玄 - deep, profound, abstruse 武 - military; martial, warlike 岩 - cliff; rocks; mountain