Propellant (noun)

A substance that propels or drives a device or vehicle forward, such as a rocket or jet engine.

Origin:

The word propellant is derived from the latin word "propellentem" meaning "to drive forward" . it was first used in english in the early 19th century.

Examples:

1. The rocket's propellant was a mixture of liquid oxygen and kerosene.
2. The spacecraft's propulsion system was powered by a solid propellant.
3. The propellant used in the aerosol can was a hydrocarbon-based compound.
4. The propellant in the paintball gun compressed air to launch the paintball.
5. The propellant was the key component in the rocket's ability to achieve escape velocity.