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nacreous

adjective
na·​cre·​ous | \ ˈnā-krē-əs How to pronounce nacreous (audio) , -k(ə-)rəs\

Definition of nacreous

: possessing the qualities of, consisting of, or abounding in nacre also : iridescent
Synonyms Example Sentences Learn More about nacreous

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Examples of nacreous in a Sentence

the nacreous lining of the shell of a mollusk

Recent Examples on the Web

 Also called polar stratospheric clouds (or less precisely, rainbow clouds), nacreous clouds normally only form in high latitudes and at extremely cold temperatures. — National Geographic, "Rare Shimmering Rainbow Clouds Appear Over the U.K.," 3 Feb. 2016 The cold air the storm blew in also led to the formation of beautiful nacreous clouds. — National Geographic, "Rare Shimmering Rainbow Clouds Appear Over the U.K.," 3 Feb. 2016

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

First Known Use of nacreous

1819, in the meaning defined above

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More Definitions for nacreous

nacreous

adjective
na·​cre·​ous | \ ˈnā-krē-əs How to pronounce nacreous (audio) , -k(ə-)rəs How to pronounce nacreous (audio) \

Medical Definition of nacreous

: having a pearly appearance nacreous bacterial colonies

More from Merriam-Webster on nacreous

Thesaurus: All synonyms and antonyms for nacreous

Nglish: Translation of nacreous for Spanish Speakers

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