WordNet
booster unit
n. the first stage of a multistage rocket [syn: booster, booster rocket, multistage rocket, takeoff booster, takeoff rocket]
Usage examples of "booster unit".
I was about to try another number when I finally realized nobody could be reached, because my internal phone relied, when out on the surface, on a booster unit that's standard equipment in a pressure suit.
She had a range of half a kilometer from the ship over which mind and body could keep in contact, and farther still if the booster unit were in place, which project he was studying.