| nacre | <zoology> A pearly substance which lines the interior of many shells, and is most perfect in the mother-of-pearl. Alternative forms: nacker and naker] See Pearl, and Mother-of-pearl. Origin: F, cf. Sp. Nacara, nacar, It. Nacchera, naccaro, LL. Nacara, nacrum; of Oriental origin, cf. Ar. Nakir hollowed. Source: Websters Dictionary (01 Mar 1998) |
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| nacreous | Consisting of, or resembling nacre, pearly, lustrous, like mother-of-pearl; descriptive term for bacterial colonies. Origin: Fr. Nacre, mother-of-pearl (21 Jun 2000) |
| nacreous ichthyosis | A variant of ichthyosis characterised by dry pearly scales. (05 Mar 2000) |