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Definitions

propellant

[pruh-pel-uhnt] / prəˈpɛl ənt /




NOUN
gasoline
Synonyms




Example Sentences

Examples are provided to illustrate real-world usage of words in context. Any opinions expressed do not reflect the views of Dictionary.com.

"But we're also humans trying to load millions of pounds of propellant onto a giant machine and send it to the Moon," he added.

From Barron's • Mar. 27, 2026

Helium is used to pressurise propellant tanks, and any fault in that system could affect the performance of the upper stage engine or the safe draining of the fuel.

From BBC • Mar. 20, 2026

"If we're going to send humans to Mars, you need H2O and not just for drinking, but for propellant and all manner of applications," Luzzi said.

From Science Daily • Dec. 27, 2025

Two Iranian ships have been sailing from China with tons of sodium perchlorate, a main ingredient for producing solid propellant for ballistic missiles, The Wall Street Journal reported earlier this year.

From The Wall Street Journal • Dec. 12, 2025

Our conclusion was we didn’t know what we were doing with the new propellant.

From "October Sky" by Homer Hickam