noun
- substances that provide thrust or force to move something forward, especially fuel or chemicals used in rockets, missiles, or aerosol sprays
Usage: technical; often used in aerospace and engineering contexts
Examples
- The rocket uses liquid propellents to achieve escape velocity.
- Aerosol cans contain propellents that push the contents out when sprayed.
- Scientists are developing more efficient propellents for space missions.
- The missile’s solid propellents burned for thirty seconds.
- Environmental regulations restrict certain propellents in consumer products.
- The spacecraft carried enough propellents for a three-year mission.