variants
or less commonly propellent
: something that propels: such as
a
: an explosive for propelling projectiles
b
: fuel plus oxidizer used by a rocket engine
c
: a gas kept under pressure in a bottle or can for expelling the contents when the pressure is released
Examples of propellant in a Sentence
Recent Examples on the Web
Kirsty Hatcher, People.com, 19 June 2025
While SpaceX engineers worked on resolving the propellant leak on the ground, a leak of another kind in orbit forced officials to order a longer delay to the Ax-4 mission.
—ArsTechnica, 13 June 2025
ArsTechnica, 20 June 2025
That allows the satellites to use minimal propellant to attempt formation flying.
—Jamie Carter, Space.com, 16 June 2025
See All Example Sentences for propellant
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Adjective
As previously reported by PEOPLE, while the vehicle successfully reached the Earth's orbit, an apparent propellant leak caused a loss of altitude.
—Kirsty Hatcher, People.com, 19 June 2025
While SpaceX engineers worked on resolving the propellant leak on the ground, a leak of another kind in orbit forced officials to order a longer delay to the Ax-4 mission.
—ArsTechnica, 13 June 2025
Noun
Ozone losses are driven by the chlorine produced from solid rocket motor propellant and black carbon, which is emitted from most propellants, the study says.
—ArsTechnica, 20 June 2025
That allows the satellites to use minimal propellant to attempt formation flying.
—Jamie Carter, Space.com, 16 June 2025
See All Example Sentences for propellant
Cite this Entry
“Propellant.” Merriam-Webster.com Dictionary, Merriam-Webster, https://www.merriam-webster.com/dictionary/propellant. Accessed 29 Jun. 2025.
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