Definition of ion engine Ion engine
i•on en•gine
We found 2 definitions of ion engine from 2 different sources.
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What does ion engine mean?
WordNet
Noun |
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| ion engine - a type of reaction-propulsion engine to propel rockets in space; a stream of positive ions is accelerated to a high velocity by an electric field |
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Wiktionary 
- ion engine (Noun)
A type of spacecraft propulsion, whereby electric field s accelerate ions out the exhaust to provide motive force.
