Trends ofaltostratus
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altostratus
(æltoʊstreɪtəs, -stræt-)
Word forms: altostrati
variable noun
Altostratus is a type of thick gray cloud that forms at intermediate altitudes.
[technical] altostratus in British English
(ˌæltəʊˈstreɪtəs, -ˈstrɑː-)
nounWord forms: plural -ti (-taɪ)
a layer cloud at an intermediate height of about 2400 to 6000 metres (8000 to 20 000 feet)
altostratus in American English
(ˌæltoʊˈstreɪtəs; ˌæltoʊˈstrætəs)
noun
the type of gray or bluish cloud found at intermediate altitudes and consisting of a thick, dense, extensive layer of ice crystals and water droplets: may cause light precipitation
see also cloudWord origin
alto- + stratusImage ofaltostratus
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