大気組成 (たいきそせい) Japanese meaning | Kotomora- 大気
大気 means 'atmosphere' in general, while 大気組成 specifically refers to the chemical makeup of the atmosphere.
- 組成
組成 means 'composition' or 'makeup' and can be used for various materials; 大気組成 is a specific compound for atmospheric composition.
Etymology
Compound of 大気 (atmosphere) and 組成 (composition).