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/ˌkjuː.mjʊ.ləʊˈnɪm.bəs/ · noun
(meteorology) A 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.
Use cumulonimbus when its meaning, tone and grammar fit the full sentence. A synonym is not always a direct replacement.
Cumulonimbus means (meteorology) A cloud with a tall structure and flat base, often associated with thunderstorms..
Common synonyms include nimbocumulus, thundercloud, cumulonimbus cloud.
The opposite depends on the specific sense.
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.
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