accelerator

US /ekˈsel.ɚ.eɪ.t̬ɚ/
UK /ekˈsel.ɚ.eɪ.t̬ɚ/
1.

bàn đạp ga xe hơi, gia tăng tốc độ, người hối, thúc giục

a person or thing that causes something to happen or develop more quickly.

:
the country has been the main accelerator of global growth for a decade
2.

bàn đạp ga xe hơi, gia tăng tốc độ, người hối, thúc giục

a device, typically a pedal, that controls the speed of a vehicle's engine.

:
he pressed the accelerator to the floor and the taxi shot forward