altostratus

noun al·to·stra·tus \ ˌal-tō-ˈstrā-təs , -ˈstra- \

Definition of altostratus

plural altostrati play \-ˌtī\
: a fairly uniform mid-altitude layer of gray cloud darker than cirrostratus — see cloud illustration

Origin and Etymology of altostratus

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


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