Nacker \Nack"er\ (n[a^]k"[~e]r), n. See Nacre. --Johnson. [1913 Webster]

Source: The Collaborative International Dictionary of English v.0.48
 

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[imac]r 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]

Source: The Collaborative International Dictionary of English v.0.48
 

Nacker \Nack"er\, n. See Nacre. --Johnson.

Source: Webster's Revised Unabridged Dictionary (1913)
 

Nacre \Na"cre\, 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.

Source: Webster's Revised Unabridged Dictionary (1913)