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Definition of cumulus noun from the Oxford Advanced Learner's Dictionary

cumulus

noun

/ˈkjuːmjələs/

/ˈkjuːmjələs/

[uncountable] (specialist)

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a type of thick white cloudTopics Weatherc2
Oxford Collocations Dictionary
Cumulus is used before these nouns:
cloud
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Word Originmid 17th cent. (denoting a heap or an accumulation): from Latin, ‘heap’.

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See cumulus in the Oxford Advanced American Dictionary

Check pronunciation: cumulus

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noun

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Plants and trees

C2

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