noun🔗Share적란운A cloud, with a tall structure and a flat base, that is often associated with thunderstorms."We canceled the school picnic when we saw a large cumulonimbus forming in the sky, because those clouds often bring thunderstorms. "우리는 하늘에 큰 적란운이 형성되는 것을 보고 학교 소풍을 취소했는데, 그 구름들이 종종 뇌우를 동반하기 때문이다.weathernatureChat with AIVocabulary GamePractice Reading
