NATURALIST
Nat"u*ral*ist, n. Etym: [Cf. F. naturaliste.]
1. One versed in natural science; a student of natural history, esp. of the natural history of animals.
2. One who holds or maintains the doctrine of naturalism in religion. H. Bushnell.
NATURALISTIC
Nat`u*ral*is"tic, a.
1. Belonging to the doctrines of naturalism.
2. Closely resembling nature; realistic. "Naturalistic bit of pantomime." W. D. Howells.
NATURALITY
Nat`u*ral"i*ty, n. Etym: [L. naturalitas: cf. F. naturalité.]
Defn: Nature; naturalness. [R.]
NATURALIZATION
Nat`u*ral*i*za"tion, n. Etym: [Cf. F. naturalisation.]
Defn: The act or process of naturalizing, esp. of investing an alien with the rights and privileges of a native or citizen; also, the state of being naturalized.