English Explanatory Dictionary

cumulus

English dictionary entry

Meanings

noun
  1. A heap or mound.
  2. A large white, puffy cloud that develops through convection.

Pronunciation

/ˈkjuːmjʊləs/ LL-Q1860 (eng)-Vealhurl-cumulus.wav /ˈkjumjələs/

Word forms

cumulus cumuli

Etymology

Etymology tree Proto-Indo-European *ḱewh₁- Proto-Indo-European *ḱuh₁mósder.? Latin cumulusbor. English cumulus Learned borrowing from Latin cumulus. Doublet of comble. Sense 2 (“type of cloud”) was coined by the British chemist and amateur meteorologist Luke Howard (1772–1864): see the 1803 quotation.

Derived words

cumulus oophorus fumulus pyrocumulus roll cumulus stratocumulus
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