大气层 Traditional form: 大氣層 Pinyin (reading): dàqìcéng Definitions: atmosphere Characters: 大 - big, great, vast, high, deep 气 - air, gas; steam, vapor; anger 层 - layer, floor, story, stratum Traditional characters: 大 - big, great, vast, high, deep 氣 - air, gas; steam, vapor; anger 層 - layer, floor, story, stratum