rockoon en · NOUN
Pronunciation
- /ɹɑˈkun/ (General-American)
- /ɹɒˈkuːn/ (Received-Pronunciation)
Etymology
Blend of rocket + balloon.
Meanings
- 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.
Forms
| Spelling | Features | Labels | Source |
|---|---|---|---|
| rockoons | Number=Plur | lexicographic |