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cumulonimbus
[ kyoo-myuh-loh-nim-buhs ]
noun
Meteorology.
plural cumulonimbus.
- a cloud of a class indicative of thunderstorm conditions, characterized by large, dense towers that often reach altitudes of 30,000 feet (9,000 meters) or more, cumuliform except for their tops, which appear fibrous because of the presence of ice crystals: occurs as a single cloud or as a group with merged bases and separate tops.
cumulonimbus
/ ˌːʊəʊˈɪə /
noun
- meteorol a cumulus cloud of great vertical extent, the top often forming an anvil shape and the bottom being dark coloured, indicating rain or hail: associated with thunderstorms
cumulonimbus
/ ̅̅′yə-ō-ĭ′ə /
, Plural cumulonimbi ̅̅′yə-ō-ĭ′ī
- An extremely dense, vertically developed cloud with a low, dark base and fluffy masses that tower to great heights. Cumulonimbus clouds usually produce heavy rains, thunderstorms, or hailstorms.
- Also called thundercloud
- See illustration at cloud
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yvlog History and Origins
Origin of cumulonimbus1
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Example Sentences
Examples have not been reviewed.
Mammatus is most often found at the base of a thunderstorm cloud called cumulonimbus.
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Convective - up and down drafts in and surrounding thunderstorm clouds, called cumulonimbus.
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Thunderstorms are powerful and complex phenomena, with air inside a cumulonimbus storm cloud moving rapidly upwards and downwards.
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Storms that create thunder, lightning and hail are only produced by cumulonimbus clouds.
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In these storms, rotations can occur in the base of the cumulonimbus cloud which extends down to the ground.
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