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altostratus

noun
al·​to·​stra·​tus | \ ˌal-tō-ˈstrā-təs How to pronounce altostratus (audio) , -ˈstra- How to pronounce altostratus (audio) \
plural altostrati\ -​ˌtī How to pronounce altostrati (audio) \

Definition of altostratus

: a fairly uniform mid-altitude layer of gray cloud darker than cirrostratus — see cloud illustration

Examples of altostratus in a Sentence

Recent Examples on the Web

 Mid-level clouds are usually gray and are identified as either altocumulus, altostratus, or nimbostratus. — Catherine Zuckerman, National Geographic, "Clouds, explained," 24 Apr. 2019

First Known Use of altostratus

1890, in the meaning defined above

History and Etymology for altostratus

New Latin, from Latin altus + New Latin -o- + stratus

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