| NOUN | artifact | test instrument vehicle, test rocket, research rocket | a rocket fired for test purposes |
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| Meaning | A rocket fired for test purposes. | |
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| Synonyms | test rocket, research rocket | |
| Narrower | sounding rocket | A research rocket used to obtain information about the atmosphere at various altitudes |
| Broader | rocket, projectile | Any vehicle self-propelled by a rocket engine |
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