Definition of ion engine
: a reaction engine deriving thrust from the ejection of a stream of ionized particles
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Recent Examples of ion engine from the Web
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Launched in 2007 with an ion engine, Dawn is nearing the end of its extended mission.
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Launched in 2007 with an ion engine, Dawn is nearing the end of its extended mission.
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Launched in 2007 with an ion engine, Dawn is nearing the end of its extended mission.
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Launched in 2007 with an ion engine, Dawn is nearing the end of its extended mission.
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Launched in 2007 with an ion engine, Dawn is nearing the end of its extended mission.
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Hayabusa2 is powered by ion engines, which accelerate charged atoms of xenon with an electric field to generate thrust.
These example sentences are selected automatically from various online news sources to reflect current usage of the word 'ion engine.' Views expressed in the examples do not represent the opinion of Merriam-Webster or its editors. Send us feedback.
First Known Use of ion engine
1958
Learn More about ion engine
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Britannica.com: Encyclopedia article about ion engine
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