NATTER
Nat"ter, v. i. Etym: [Cf. Icel. knetta to grumble.]

Defn: To find fault; to be peevish. [Prov. Eng. or Scot.]

NATTERJACK
Nat"ter*jack`, n. (Zoöl.)

Defn: A European toad (Bufo calamita), having a yellow line along its back.

NATTY
Nat"ty, a. Etym: [Cf. Neat clean.]

Defn: Neat; tidy; spruce. [Colloq.] — Nat"ti*ly, adv.
— Nat"ti*ness, n.

NATURAL Nat"u*ral, a. Etym: [OE. naturel, F. naturel, fr. L. naturalis, fr. natura. See Nature.]

1. Fixed or determined by nature; pertaining to the constitution of a thing; belonging to native character; according to nature; essential; characteristic; not artifical, foreign, assumed, put on, or acquired; as, the natural growth of animals or plants; the natural motion of a gravitating body; natural strength or disposition; the natural heat of the body; natural color. With strong natural sense, and rare force of will. Macaulay.

2. Conformed to the order, laws, or actual facts, of nature; consonant to the methods of nature; according to the stated course of things, or in accordance with the laws which govern events, feelings, etc.; not exceptional or violent; legitimate; normal; regular; as, the natural consequence of crime; a natural death. What can be more natural than the circumstances in the behavior of those women who had lost their husbands on this fatal day Addison.

3. Having to do with existing system to things; dealing with, or derived from, the creation, or the world of matter and mind, as known by man; within the scope of human reason or experience; not supernatural; as, a natural law; natural science; history, theology. I call that natural religion which men might know … by the mere principles of reason, improved by consideration and experience, without the help of revelation. Bp. Wilkins.