Automatic \Au`to*mat"ic\, Automatical \Au`to*mat"ic*al\, a. [Cf. F. automatique. See Automaton.]

1. Having an inherent power of action or motion.

Nothing can be said to be automatic. --Sir H. Davy.

2. Pertaining to, or produced by, an automaton; of the nature of an automaton; self-acting or self-regulating under fixed conditions; -- esp. applied to machinery or devices in which certain things formerly or usually done by hand are done by the machine or device itself; as, the automatic feed of a lathe; automatic gas lighting; an automatic engine or switch; an automatic mouse.

3. Not voluntary; not depending on the will; mechanical; as, automatic movements or functions.

Unconscious or automatic reasoning. --H. Spenser.

Automatic arts, such economic arts or manufacture as are carried on by self-acting machinery. --Ure.

Source: Webster's Revised Unabridged Dictionary (1913)