Definition of 'nacreous'

Adjective

1. consisting of or resembling mother-of-pearl
2. having a play of lustrous rainbow-like colors; "an iridescent oil slick"; "nacreous (or pearlescent) clouds looking like mother-of-pearl"; "a milky opalescent (or opaline) luster"
      Synonyms: iridescent opalescent opaline pearlescent

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