cumulonimbus

noun
cu·​mu·​lo·​nim·​bus | \ ˈkyü-myə-(ˌ)lō-ˈnim-bəs How to pronounce cumulonimbus (audio) \

Definition of cumulonimbus

: cumulus cloud having a low base and often spread out in the shape of an anvil extending to great heights — see cloud illustration

Examples of cumulonimbus in a Sentence

Recent Examples on the Web

There was a very tall cloud — probably a cumulonimbus — that was building right along the horizon as the sun was setting. Jason Samenow, Washington Post, "This strange shadow was seen in Maryland and Pennsylvania on Saturday," 20 June 2018 Towering cumulonimbus clouds made for magical sunsets, and the warm, yellow rays of sunshine generated rainbows that were seen across Northern Virginia and Montgomery County. Angela Fritz, Washington Post, "Beautiful photos of our semi-stormy weekend," 25 June 2018 In mid-afternoon, the giant bubblers, the cumulonimbus clouds, can then build vertically thousands of feet into the sky. Tom Stienstra, San Francisco Chronicle, "Mountain thunder, lightning mean summer has arrived," 21 May 2018 Thanks to Boise viewer Robin Hadder for sending in this picture of the towering cumulonimbus cloud that formed this evening in the Boise area. Katy Moeller, idahostatesman, "Storm inundated Boise neighborhood Wednesday night. Is another soggy weekend ahead? | Idaho Statesman," 17 May 2018 In it, falling rain evaporates before reaching the ground because of high temperatures, but lightning from the high cumulonimbus clouds reaches the ground. Washington Post, "Portugal, a country helplessly prone to forest fires," 19 June 2017 At the logjammed bars, attendees reached again and again for palomas over bountiful crudité platters offering strips of jicama, spears of asparagus and cumulonimbus piles of purple cauliflower. Isaac Oliver, New York Times, "Going (Nearly) Bare for a Good Cause," 5 Apr. 2017 Your fingers slip into routines, digital rituals encoded by childhood habits, neural pathways waking like heat lightning blinking through cumulonimbus clouds. Matt Peckham, Time, "Metroid: Samus Returns Is Exactly the Metroid the 3DS Needs," 27 June 2017 If a clear sky in a landscape looked boring, a photographer’s assistant — often a woman (thought to possess a surer hand) — could create a separate negative with billowing cumulonimbuses. John Kelly, Washington Post, "A lecture on 19th-century photography techniques provides more than a snapshot," 8 May 2017

These example sentences are selected automatically from various online news sources to reflect current usage of the word 'cumulonimbus.' Views expressed in the examples do not represent the opinion of Merriam-Webster or its editors. Send us feedback.

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First Known Use of cumulonimbus

1887, in the meaning defined above

History and Etymology for cumulonimbus

New Latin

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Last Updated

2 Mar 2019

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Time Traveler for cumulonimbus

The first known use of cumulonimbus was in 1887

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More from Merriam-Webster on cumulonimbus

Britannica.com: Encyclopedia article about cumulonimbus

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