rockoon

名词 n.
英 /ɹɒˈkuːn/    美 /ɹɑˈkun/

英文释义

名词 n.
  1. A rocket, powered by solid fuel, that is not lit while on the ground but first carried into the upper atmosphere by a gas-filled balloon, then separated from the balloon and automatically ignited to allow it to achieve a higher altitude.

词形变化

rockoons plural

词源

Blend of rocket + balloon.
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