Engine and Reaction-propulsion engine

Engine noun - A device that changes energy into mechanical motion.

Reaction-propulsion engine and engine are semantically related. In some cases you can replace phrase "Reaction-propulsion engine" with "Engine", this terms are similar.

Nearby Words: engineer, enginery

Reaction-propulsion engine noun - A jet or rocket engine based on a form of aerodynamic propulsion in which the vehicle emits a high-speed stream.

Engine and reaction-propulsion engine are semantically related. You can use "Engine" instead a noun phrase "Reaction-propulsion engine".