Category:Nacre

Na"cre, n. Etym: [f., cf. Sp. nácara, nácar, it. nacchera, naccaro, Ll. nacara, nacrum; of oriental origin, cf. Ar. nakir hollowed.] (zoöl.)

Defn: 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.