ion propulsion
or ionic propulsion
noun
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.
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Nearby words
- ion engine,
- ion exchange,
- ion exchanger,
- ion generator,
- ion implantation,
- ion rocket,
- ion trap,
- ion-exchange resin,
- ion.,
- iona
Dictionary.com Unabridged
Based on the Random House Unabridged Dictionary, © Random House, Inc. 2019