A person having the qualities of an android; one with few or no emotions or little personality, or who acts in an unthinking manner; a robot.
A robot, especially one made with some physical resemblance to a human (an android).
One who idles; a lazy person; a sluggard.
One who idles; one who spends his or her time in inaction.
A mechanical device such as a pulley or wheel that does not transmit power, but supports a moving belt etc.