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nacreous

American  
[ney-kree-uhs] / ˈneɪ kri əs /

adjective

  1. of or relating to nacre.

  2. resembling nacre; lustrous; pearly.

    a nacreous luster;

    a nacreous sky.


nacreous British  
/ ˈneɪkrɪəs /

adjective

  1. relating to or consisting of mother-of-pearl

  2. having the lustre of mother-of-pearl

    nacreous minerals

"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

Other Word Forms

Etymology

Origin of nacreous

First recorded in 1830–40; nacre + -ous

Example Sentences

Examples are provided to illustrate real-world usage of words in context. Any opinions expressed do not reflect the views of Dictionary.com.

Nacreous cloud form in very cold conditions over polar regions and within the stratosphere, about 12 to 19 miles high, far above normal clouds.

From BBC • Dec. 21, 2023

Nacreous clouds are mostly seen a couple of hours either side of sunset or sunrise and, being so high, they are still lit by sunlight which makes them appear even brighter in our evening sky.

From BBC • Dec. 20, 2023

One BBC Weather Watcher said "absolutely fantastic Nacreous cloud caught at tonight's sunset with some gulls flying over. What a fantastic sight to behold".

From BBC • Jan. 30, 2023

Sky-gazers across Scotland were treated to a rare sight on Sunday evening as Nacreous cloud was spotted.

From BBC • Jan. 30, 2023

All its plumage fiery with the starshine, Nacreous, shimmering, weeping, iridescent, It drifts across the floor and mounts the bed, To the tap of little satin shoes.

From Young Adventure, a Book of Poems by Benét, Stephen Vincent

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