- Having an inherent power of action or motion. - 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. - Not voluntary; not depending on the will; mechanical;
as, automatic movements or functions.