What is the meaning of Automatic?

Capable of operating without external control or intervention.

Done out of habit or without conscious thought.

Necessary, inevitable, prescribed by logic, law, etc.

Firing continuously as long as the trigger is pressed until ammunition is exhausted.

An autoloader; a semi-automatic or self-loading pistol, as opposed to a revolver or other manually actuated handgun, which fires one shot per pull of the trigger; distinct from machine guns.

Automatically added to and removed from the stack during the course of function calls.

Having one or more finite-state automata.

A car with an automatic transmission; the transmission itself.

A semi-automatic pistol.

automatic

Source: wiktionary.org