propellant.

A substance used to provide thrust or expel another material.

Use it for

Words that belong together

• rocket propellant
• aerosol propellant

On the page

The crew conserved propellant for the return maneuver.

Usage notes

Primary category: sci-fi. Forms: Countable or uncountable by context; countable singular propellant; plural propellants. Legacy lexical fields mirror sense 1 only. Use numbered sense fields for all meanings. Established modern English lexical item. No separate regional spelling or grammatical inflection entry. Writing functions: description, technology. Commonness: moderately common.