Definition of "thruster" [thrust•er]

• One who thrusts or stabs. (noun)
• A device for propelling an object, especially a spacecraft or a ship (marine vessel). (noun)
• A bow thruster. (noun)
• A surfboard (usually a shortboard) with three fins of approximately equal size, one centred at the back, one on each side about 25cm forward and out near the rails. (noun)

Wiktionary.org : Text is available under the Creative Commons Attribution-ShareAlike License

• "The Russian Hall effect thruster is one type of electric propulsion system particularly suited for near-Earth missions."
• "Our main thruster was malfunctioning, which called for an emergency landing, and I picked the least populated area in the vicinity."
• "CABBAGE: Apparently, the issue is with a thermostat that controls the heater on one of these so-called thruster jets that they use to keep the shuttle stable when it's docked to the space station or when it's in space and they are making inspections."