Thrusters

thruster

[thruhs-ter]
noun
1.
a person or thing that thrusts.
2.
Fox Hunting. a rider who keeps in the front of the field.
3.
Aerospace. a small rocket attached to a spacecraft and used to control its attitude or translational motion.

Origin:
1590–1600; thrust + -er1

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World English Dictionary
thruster (ˈθrʌstə)
 
n
1.  a person or thing that thrusts
2.  Also called: vernier rocket a small rocket engine, esp one used to correct the altitude or course of a spacecraft
3.  an auxiliary propeller on a ship, capable of acting athwartships

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