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cirrocumulus

[ sir-oh-kyoo-myuh-luh s ]
/ ˌsɪr oʊˈkyu myə ləs /
|

noun, plural cir·ro·cu·mu·lus.

a cirriform cloud of a class characterized by thin, white patches, each of which is composed of very small granules or ripples: of high altitude, about 20,000–40,000 feet (6000–12,000 meters).

Nearby words

  1. cirri-,
  2. cirriform,
  3. cirriped,
  4. cirripede,
  5. cirro-,
  6. cirrose,
  7. cirrosely,
  8. cirrostratus,
  9. cirrous,
  10. cirrus

Origin of cirrocumulus

First recorded in 1795–1805; cirro- + cumulus
Related formscir·ro·cu·mu·lar, cir·ro·cu·mu·la·tive [sir-oh-kyoo-myuh-ley-tiv, -luh-tiv] /ˌsɪr oʊˈkyu myəˌleɪ tɪv, -lə tɪv/, cir·ro·cu·mu·lous, adjective
Dictionary.com Unabridged Based on the Random House Unabridged Dictionary, © Random House, Inc. 2019

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British Dictionary definitions for cirrocumulus

cirrocumulus

/ (ˌsɪrəʊˈkjuːmjʊləs) /

noun plural -li (-ˌlaɪ)

meteorol a high cloud of ice crystals grouped into small separate globular masses, usually occurring above 6000 metres (20 000 feet)See also mackerel sky
Collins English Dictionary - Complete & Unabridged 2012 Digital Edition © William Collins Sons & Co. Ltd. 1979, 1986 © HarperCollins Publishers 1998, 2000, 2003, 2005, 2006, 2007, 2009, 2012

Word Origin and History for cirrocumulus

cirrocumulus

n.

1803, from cirrus + cumulus.

Online Etymology Dictionary, © 2010 Douglas Harper

Science definitions for cirrocumulus

cirrocumulus

[ sîr′ō-kyōōm′yə-ləs ]

Plural cirrocumuli (sîr′ō-kyōōm′yə-lī′)

A high-altitude cloud composed of a series of small, regularly arranged cloudlets in the form of ripples or grains. Cirrocumulus clouds generally form between 6,100 and 12,200 m (20,000 and 40,000 ft) and are composed exclusively of ice crystals. See illustration at cloud.
The American Heritage® Science Dictionary Copyright © 2011. Published by Houghton Mifflin Harcourt Publishing Company. All rights reserved.