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
Ars Technica, 18 Mar. 2025
Senior vehicle operations manager Cliff Lanham with NASA ground systems said the teams have addressed all the gremlins that popped up in the months before the launch of Artemis I, including leaks in the propellant lines that flowed into the rocket.
—Richard Tribou, Orlando Sentinel, 9 Mar. 2025
Stephen Clark, Ars Technica, 28 Feb. 2025
The company also plans to launch its first, more complex liquid propellant launch vehicle later this year.
—Andrew Jones, Space.com, 22 Jan. 2025
See All Example Sentences for propellant
Examples are automatically compiled from online sources to
show current usage.
Read More
Opinions expressed in the examples do not represent those of Merriam-Webster or its editors.
Send us feedback.
Adjective
The four propellant tanks on Blue Ghost are arranged in a diagonal configuration, with two containing hydrazine fuel and two holding an oxidizer called nitrogen tetroxide.
—Ars Technica, 18 Mar. 2025
Senior vehicle operations manager Cliff Lanham with NASA ground systems said the teams have addressed all the gremlins that popped up in the months before the launch of Artemis I, including leaks in the propellant lines that flowed into the rocket.
—Richard Tribou, Orlando Sentinel, 9 Mar. 2025
Noun
Rocket Lab also has the option to return the Neutron first stage back to the launch site when mission parameters allow the rocket to reserve enough propellant to make the return journey.
—Stephen Clark, Ars Technica, 28 Feb. 2025
The company also plans to launch its first, more complex liquid propellant launch vehicle later this year.
—Andrew Jones, Space.com, 22 Jan. 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 2 Apr. 2025.
Copy CitationLove words? Need even more definitions?
Merriam-Webster unabridged
Share