noun🔗Share외기권The uppermost layer of a planet's atmosphere"Satellites orbit Earth within the exosphere, where the air is extremely thin. "위성은 공기가 매우 희박한 외기권 내에서 지구를 공전합니다.spaceastronomyenvironmentscienceweatherChat with AIVocabulary GamePractice Reading
noun🔗Share외기권An extremely thin atmosphere, as on Saturn's moon Dione"Because Saturn's moon Dione has such a weak and thin atmosphere, scientists classify it as an exosphere. "토성의 달 디오네는 매우 약하고 얇은 대기를 가지고 있기 때문에 과학자들은 이를 외기권으로 분류합니다.astronomyspacescienceenvironmentChat with AIVocabulary GamePractice Reading