Meaning of “altostratus” in the English Dictionary

british dictionary

"altostratus" in British English

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altostratusnoun [ U ]

uk /ˌæl.təʊˈstrɑː.təs/ us /ˌæl.toʊˈstreɪ.t̬əs/ specialized

a type of stratus (= a flat, grey cloud) formed in thin layers and found at medium height, above the level of stratus

(Definition of “altostratus” from the Cambridge Advanced Learner’s Dictionary & Thesaurus © Cambridge University Press)