ion rocket

American  

noun

Rocketry.

1. a rocket or rocket engine using ion propulsion.

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ion rocket British  

noun

1. a rocket propelled by an ion engine

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Example Sentences

Last week the problem came closer to solution, not with the development of a big new chemical rocket but with the Air Force announcement that the U.S. had for the first time successfully tested an ion rocket engine in space.

From Time Magazine Archive

Under development by Electro-Optical Systems Inc. of Pasadena, Calif., for the past four years, the ion rocket is likely to prove to be the Mighty Mouse of the space age.

From Time Magazine Archive

And the ion rocket's assignment is just that: to take over the task of propelling huge space cargoes to the planets and back after the mighty chemical rockets lift them clear of the earth's gravitational pull.

From Time Magazine Archive

Landing a ship on her jets isn’t an easy job, but at least an ion rocket is built for the job.

From Project Gutenberg

An ion rocket doesn’t much care where it lifts or sets down, since its method of propulsion isn’t trying to work against the fabric of space itself.

From Project Gutenberg