: a low dark layer of gray cloud usually producing light continuous rain or snow see cloud illustration
Example Sentences
Recent Examples on the WebMid-level clouds are usually gray and are identified as either altocumulus, altostratus, or nimbostratus. Catherine Zuckerman, National Geographic, 24 Apr. 2019 Mid-level clouds are usually gray and are identified as either altocumulus, altostratus, or nimbostratus. Catherine Zuckerman, National Geographic, 24 Apr. 2019
Word History
Etymology
New Latin, from Latin nimbus + New Latin stratus stratus