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English definition of “stratus”

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stratus

noun [U] uk   /ˈstreɪ.təs/ us    /ˈstreɪ.t̬əs/ specialized
a type of flat, grey cloud found at the lowest level, below all other cloud types, and causing dull weather or light rain
(Definition of stratus from the Cambridge Advanced Learners Dictionary & Thesaurus © Cambridge University Press)
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