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Use "propellent" in a sentence
"You would also need to test that $10 grenade to make sure the propellent is not old enough that its solid fuel has begun to decompose/become unstable."
"The possibilities and advantages of Ares V in particular are endless: Direct launches to the far solar system (no need for time-consuming Venus gravity assists), no need for complex solar array/antenna/mirror segment deployments, no need for aero-braking upon arrival (propellent weight no longer a problem), getting to Pluto in just 5 years, reaching interstellar space within the lifetime of the Principal Investigators, etc.etc. Rand Simberg"
"If you listen to the booster crackle this is thrust oscillation as the pressure is dynamically changing and the propellent burn is not the same rate at the segment joints because of shape."