cumulus
noun /ˈkjuːmjələs/
/ˈkjuːmjələs/
[uncountable] (specialist)- a type of thick white cloudTopics Weatherc2Oxford Collocations DictionaryCumulus is used before these nouns:
- cloud
Word Originmid 17th cent. (denoting a heap or an accumulation): from Latin, ‘heap’.