burnout: Meaning and Definition of

burn•out

1. a fire that is totally destructive of something.
2. fatigue, frustration, or apathy resulting from prolonged stress, overwork, or intense activity.
1. the termination of effective combustion in a rocket engine, due to exhaustion of propellant.
2. the end of the powered portion of a rocket's flight.
4. the breakdown of a lamp, motor, or other electrical device due to the heat created by the current flowing through it.