Etymology

cumulonimbus

cu·mu·lo·nim·bus
C3U1M3U1L1O1N1I1M3B3U1S1

Today it means: A cloud with a tall structure and flat base, often associated with thunderstorms. Full definition →

Latin cumulus
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The story

  1. Latin · borrowed fromcumulus“heap”
  2. English todaycumulonimbus

From Latin cumulus (“heap”) + nimbus (“cloud”).

Words from the same roots

Latincumulus all →

cumuluscumbercumuliform

Etymology from Wiktionary, CC BY-SA 4.0.