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

nacre \na"cre\ n=a"k~er, n. f., cf. sp. n'acara,
   n'acar, it. nacchera, naccaro, ll. nacara, nacrum; of
   oriental origin, cf. ar. nakimacr hollowed. zool.
   a pearly substance which lines the interior of many shells,
   and is most perfect in the mother-of-pearl. written also
   nacker and naker. see pearl, and mother-of-pearl.
   1913 webster
see also:
nacker naker pearl mother-of-pearl 

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

naker \na"ker\, n. zool.
   same as nacre.
   1913 webster
see also:
nacre 

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

naker \na"ker\, n. oe. nakere, f. nakaire, ll. nacara, per.
   naq=aret.
   a kind of kettledrum. obs. -- chaucer.
   1913 webster

Naker >> N Words
Naker, definition of term: Naker
naker_pag1.html