| Noun | 1. | jet engine - a gas turbine produces a stream of hot gas that propels a jet plane by reaction propulsionrocket engine, rocket - a jet engine containing its own propellant and driven by reaction propulsion rotor - rotating mechanism consisting of an assembly of rotating airfoils; horizontal rotors on a helicopter or compressor rotors of a jet engine flame-out - the failure of a jet engine caused by an interruption of the fuel supply or by faulty combustion | |