3. (Astrol.)
Defn: A representation of the positions of the heavenly bodies as the moment of one's birth, supposed to indicate his future destinies; a horoscope. The Nativity, the birth or birthday of Christ; Christmas day. — To cast, or calculate, one's nativity (Astrol.), to find out and represent the position of the heavenly bodies at the time of one's birth.
NATKA
Nat"ka, a. (Zoöl.)
Defn: A species of shrike.
NATRIUM
Na"tri*um, n. Etym: [NL. See Natron.] (Chem.)
Defn: The technical name for sodium.
NATROLITE
Na"tro*lite, n. Etym: [Natron + -lite: cf. F. natrolithe.] (Min.)
Defn: A zeolite occuring in groups of glassy acicular crystals, and in masses which often have a radiated structure. It is a hydrous silicate of alumina and soda.
NATRON
Na"tron, n. Etym: [F., fr. Sp. natron, Ar. natrun, nitrun. Cf. Niter,
Anatron.] (Min.)
Defn: Native sodium carbonate. [Written also anatron.]