cumulonimbus / ˌkyu myə loʊˈnɪm bəs /

📖毕业后词汇积雨云积雨伞卷云雨夹雪

cumulonimbus 的定义

n. 名词 noun

plural cu·mu·lo·nim·bus.

  1. a cloud of a class indicative of thunderstorm conditions, characterized by large, dense towers that often reach altitudes of 30,000 feet or more, cumuliform except for their tops, which appear fibrous because of the presence of ice crystals: occurs as a single cloud or as a group with merged bases and separate tops.