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cirrocumulus

[sir-oh-kyoo-myuh-luh s] /ˌsɪr oʊˈkyu myə ləs/
noun, plural cirrocumulus.
1.
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).
Origin
1795-1805
1795-1805; cirro- + cumulus
Related forms
cirrocumular, cirrocumulative
[sir-oh-kyoo-myuh-ley-tiv, -luh-tiv] /ˌsɪr oʊˈkyu myəˌleɪ tɪv, -lə tɪv/ (Show IPA),
cirrocumulous, adjective
Dictionary.com Unabridged
Based on the Random House Dictionary, © Random House, Inc. 2014.
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British Dictionary definitions for cirrocumulus

cirrocumulus

/ˌsɪrəʊˈkjuːmjʊləs/
noun (pl) -li (-ˌlaɪ)
1.
(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
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Word Origin and History for cirrocumulus
n.

1803, from cirrus + cumulus.

Online Etymology Dictionary, © 2010 Douglas Harper
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cirrocumulus in Science
cirrocumulus
  (sîr'ō-kym'yə-ləs)   
Plural cirrocumuli (sîr'ō-kym'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 © 2002. Published by Houghton Mifflin. All rights reserved.
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