The Collaborative International Dictionary
nacker
Nacre \Na"cre\ (n[=a]"k[~e]r), n. [F., cf. Sp. n['a]cara, n['a]car, It. nacchera, naccaro, LL. nacara, nacrum; of Oriental origin, cf. Ar. nak[=i]r hollowed.] (Zo["o]l.) 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.
Wiktionary
nacker
n. (obsolete form of nacre English)
Usage examples of "nacker".
Lombo scooped Nacker up in an arm and led the procession that wound up the hill, through alleys and unpaved streets with eroded gullies on either side.