mother-of-pearl cloud

mother-of-pearl cloud


Origin:
1930–35

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Based on the Random House Dictionary, © Random House, Inc. 2014.
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WordNet
mother-of-pearl cloud

noun
a luminous iridescent cloud at a high altitude that may be seen when the sun is a few degrees below the horizon [syn: nacreous cloud
WordNet® 3.0, © 2006 by Princeton University.
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