cumulonimbus

cu·mu·lo·nim·bus
C3U1M3U1L1O1N1I1M3B3U1S1
UK/ˌkjuː.mjʊ.ləʊˈnɪm.bəs/US/ˌkju.mjə.loʊˈnɪm.bəs/

noun

A cloud with a tall structure and flat base, often associated with thunderstorms.

Similar
nimbocumuluscumulonimbus cloudthundercloud
UncommonScrabble 20

Meanings

nouncumulonimbus (plural cumulonimbuses or cumulonimbi)

plural cumulonimbuses · plural cumulonimbi · alternative cumulo-nimbus

  1. climatologyA cloud with a tall structure and flat base, often associated with thunderstorms.

    The one to the east (which at the moment seemed to be leaping straight out of the heart of a sinister slaty-purple patch of cumulonimbus) drained the Lake of the Hanging Glaciers; that to the west a desolate rock and ice-walled valley which was rimmed by some of the highest summits in the Selkirks.

    1921, Lewis R. Freeman, chapter III, in Down the Columbia

    Synonyms: nimbocumulus

Synonyms & antonyms

nounA cloud with a tall structure and flat base, often associated with thunderstorms.

More synonyms by meaning

nouna dark cloud of great vertical extent charged with electricity; associated with thunderstorms

Similar
cumulonimbus cloudthundercloud
Broader

Synonym sets from Open English WordNet, CC BY 4.0.

Origin

  1. Latincumulus“heap”
  2. Englishcumulonimbus

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

Full word history & related roots →

Translations

Bulgarian купесто-дъждовен облак
  • купесто-дъждовен облак (kupesto-dăždoven oblak)cloud
Catalan cumulonimbe, cumulonimbus
  • cumulonimbecloud
  • cumulonimbuscloud
Chinese Cantonese 積雨雲 /积雨云
  • 積雨雲 /积雨云 (zik¹ jyu⁵ wan⁴)cloud
Chinese Mandarin 積雨雲 /积雨云
  • 積雨雲 /积雨云 (jīyǔyún)cloud
Dutch cumulonimbus
  • cumulonimbuscloud
Finnish kuuropilvi, ukkospilvi
  • kuuropilvicloud
  • ukkospilvicloud
French cumulonimbus
  • cumulonimbuscloud
German Kumulonimbus
  • Kumulonimbuscloud
Greek σωρειτομελανίας
  • σωρειτομελανίας (soreitomelanías)cloud
Icelandic skúraský, þrumuský
  • skúraskýcloud
  • þrumuskýcloud
  • skúraflákarcloud
  • útsynningsklakkarcloud
Italian cumulonembo
  • cumulonembocloud
Japanese 積乱雲
  • 積乱雲 (sekiran'un)cloud
Korean 적란운
  • 적란운 (jeongnanun)cloud
Latin cumulonimbus
  • cumulonimbuscloud
Polish cumulonimbus
  • cumulonimbuscloud
Portuguese cúmulo-nimbo
  • cúmulo-nimbocloud
Romanian cumulonimbus
  • cumulonimbuscloud
Russian ку́чево-дождевое облако
  • ку́чево-дождевое облако (kúčevo-doždevoje oblako)cloud
Spanish cumulonimbo
  • cumulonimbocloud
Vietnamese mây vũ tích
  • mây vũ tíchcloud

Rhymes & wordplay

Rhymes with cumulonimbus

All rhymes →

Anagrams

Cite this entry
APA

cumulonimbus. (n.d.). In WatkinsX Dictionary. Retrieved November 4, 2026, from https://dictionary.watkinsx.com/word/cumulonimbus

MLA

“cumulonimbus.” WatkinsX Dictionary, https://dictionary.watkinsx.com/word/cumulonimbus. Accessed November 4, 2026.

Chicago

WatkinsX Dictionary, s.v. “cumulonimbus,” accessed November 4, 2026, https://dictionary.watkinsx.com/word/cumulonimbus.

Source: cumulonimbus on Wiktionary, CC BY-SA 4.0.