English edit

Etymology edit

retro- +‎ fire

Adjective edit

retrofire (not comparable)

  1. Describing rockets that are directed opposite to the direction of motion and used to slow down.
    The spaceship needs to turn around so its retrofire rockets slow it down and put it in a lower orbit.

Verb edit

retrofire (third-person singular simple present retrofires, present participle retrofiring, simple past and past participle retrofired)

  1. To fire the retrofire rockets of a craft.