nacreous

adjective
na·cre·ous | \ ˈnā-krē-əs , -k(ə-)rəs \

Definition of nacreous 

: possessing the qualities of, consisting of, or abounding in nacre also : iridescent

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Synonyms for nacreous

Synonyms

iridescent, opalescent

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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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Dictionary Entries near nacreous

Nacogdoches

nacre

nacred

nacreous

nacreous cloud

nacrite

NAD

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Time Traveler for nacreous

The first known use of nacreous was in 1819

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More Definitions for nacreous

nacreous

adjective
na·cre·ous | \ ˈnā-krē-əs , -k(ə-)rəs \

Medical Definition of nacreous 

: having a pearly appearance nacreous bacterial colonies

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Nglish: Translation of nacreous for Spanish Speakers

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occurring twice a year or every two years

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