What is the meaning of Automaton?

A machine or robot designed to follow a precise sequence of instructions.

A person who acts like a machine or robot, often defined as having a monotonous lifestyle and lacking in emotion.

A formal system, such as a finite-state machine or cellular automaton.

A toy in the form of a mechanical figure.

The self-acting power of the muscular and nervous systems, by which movement is effected without intelligent determination.

automaton

contraption

device

Source: wiktionary.org