boosttower
nounUK /ˈbuːstˌtaʊə/
US /ˈbuːstˌtaʊər/
A boosttower is a tall thing that makes something go up higher or faster.
The rocket sat on the boosttower before it flew into the sky.
OTHER MEANINGS
2. A tall structure that lifts or pushes something upward with extra power.
The boosttower pushed the elevator car up the shaft.
3. A tower that makes a signal or sound stronger.
The radio boosttower helped the music reach the faraway town.
4. A tower used to give a rocket or plane an extra push at the start.
Engineers checked the boosttower before the test flight.