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.
NACREOUS
Na"cre*ous, a. Etym: [See Nacre.] (Zoöl.)
Defn: Consisting of, or resembling, nacre; pearly.
NAD; NADDE
Nad, Nad"de. Etym: [Contr. fr. ne hadde.]
Defn: Had not. [Obs.] Chaucer.
NADDER
Nad"der, n. Etym: [AS.nædre. See Adder.]
Defn: An adder. [Obs.] Chaucer.
NADIR Na"dir, n. Etym: [F., Sp., & It. nadir; all fr. Ar. nasiru's samt nadir, prop., the point opposite the zenith (as samt), in which nasir means alike, corresponding to. Cf. Azimuth, Zenith.]
1. That point of the heavens, or lower hemisphere, directly opposite the zenith; the inferior pole of the horizon; the point of the celestial sphere directly under the place where we stand.