- a machine that resembles a human and does mechanical, routine tasks on command.
- a person who acts and responds in a mechanical, routine manner, usually subject to another's will; automaton.
- any machine or mechanical device that operates automatically with humanlike skill.
- operating automatically: a robot train operating between airline terminals.
- any automated machine programmed to perform specific mechanical functions in the manner of a man
- not controlled by man; automatic
- a person who works or behaves like a machine; automaton
- a set of traffic lights