高层云 Traditional form: 高層雲 Pinyin (reading): gāocéngyún Definitions: altostratus high stratus cloud Characters: 高 - tall, lofty; high, elevated 层 - layer, floor, story, stratum 云 - cloud; to say, to speak Traditional characters: 高 - tall, lofty; high, elevated 層 - layer, floor, story, stratum 雲 - cloud; to say, to speak