[1] : The Collaborative International Dictionary of English v.0.48

nacreous \na"creous\ n=a"kr-eu^s, a. see nacre.
   zool.
   consisting of, or resembling, nacre; pearly.
   1913 webster nad
see also:
nacre 

[2] : WordNet (r) 2.0

nacreous
     adj 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" syn: iridescent, opalescent, opaline,
         pearlescent
see also:
iridescent opalescent opaline pearlescent 

[3] : Moby Thesaurus II by Grady Ward, 1.0

48 moby thesaurus words for "nacreous":
   burele, chatoyant, creamy, delicate, eggshell, flat, gloss, iridal,
   iridescent, iridial, iridian, irisated, irised, light, mellow,
   moire, mother-of-pearl, nacre, nacred, nacry, opalescent, opaline,
   opaloid, pale, pastel, patinaed, pavonian, pavonine, pearl-like,
   pearlish, pearly, quiet, rainbowlike, rainbowy, sad, semigloss,
   simple, sober, soft, soft-colored, soft-hued, softened, somber,
   subdued, subtle, sweet, tender, tortoise-shell

Nacreous >> N Words
Nacreous, definition of term: Nacreous
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