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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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.

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