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WordReference Random House Learner's Dictionary of American English © 2024ˈspace ˌshut•tle, n. [countable][often: Space Shuttle]- Aerospacea spacecraft, or orbiter, that is launched by two rockets and can land and can be used again.
WordReference Random House Unabridged Dictionary of American English © 2024space′ shut′tle, (often caps.)- Aerospaceany of several U.S. space vehicles consisting of a reusable manned orbiter that touches down on a landing strip after an orbital mission, two reusable solid rocket boosters that drop off after initial ascent, and an expendable external tank containing liquid propellants.
Collins Concise English Dictionary © HarperCollins Publishers:: space shuttle n - any of a series of reusable US space vehicles (Columbia (exploded 2003), Challenger (exploded 1986), Discovery, Atlantis, Endeavour) that can be launched into earth orbit transporting astronauts and equipment for a period of observation, research, etc, before re-entry and an unpowered landing on a runway; the first operational flight occurred in 1981 and it was taken out of service in 2011
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