from The American Heritage® Dictionary of the English Language, 4th Edition
- transitive v. To ignite or fire (a retrorocket).
- intransitive v. To become ignited or fired. Used of a retrorocket.
from Wiktionary, Creative Commons Attribution/Share-Alike License
- adj. Describing rockets that are directed opposite to the direction of motion and used to slow down.
Sorry, no etymologies found.