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ion propulsion

noun
1.
Rocketry. a projected type of propulsion for vehicles in outer space, the exhaust consisting of positive ions and negative electrons repelled from the vehicle by electrostatic forces, resulting in a very high exhaust velocity.
Also, ionic propulsion.
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Based on the Random House Dictionary, © Random House, Inc. 2014.
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  • Install an ion propulsion engine and send it slowly to its destination.

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