单词	cirrostratus
释义	cirrostratus noun cir·​ro·​stra·​tus ˌsir-ō-ˈstrā-təs  -ˈstra-  : a fairly uniform high thin cloud layer darker than cirrus and often covering the entire sky see cloud illustration Example Sentences Recent Examples on the Web The three main types are cirrus, cirrostratus and cirrocumulus. Anna Kaufman, USA TODAY, 17 July 2022 High clouds are classified as either cirrus, cirrostratus, or cirrocumulus. Catherine Zuckerman, National Geographic, 24 Apr. 2019 Word History Etymology New Latin First Known Use circa 1803, in the meaning defined above
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