booster

a device or substance that increases the power, effectiveness, or performance of something

potenciador, acelerador, refuerzo

• booster for sth

Collocations vaccine booster · performance booster

• The vaccine booster will help protect you against the virus.

  El refuerzo de la vacuna te ayudará a protegerte contra el virus.

a person or thing that helps to improve someone's performance, confidence, etc.

potenciador, refuerzo, ayuda

• booster for sb

Collocations confidence booster · career booster

• The new job was a real career booster.

  El nuevo trabajo fue un gran refuerzo para su carrera.

a rocket or jet engine that provides extra power for a short time, especially when taking off or changing direction

acelerador, potenciador de motor, propulsor adicional

• booster engine

Collocations rocket booster · jet booster

• The rocket's boosters burned for 30 seconds.

  Los potenciadores del cohete ardió durante 30 segundos.

a device that provides extra power to a battery or electrical system

potenciador, cargador de arranque, batería auxiliar

• booster for sth

Collocations battery booster · power booster

• The battery booster will start your car if the battery is dead.

  El potenciador de batería arrancará tu coche si la batería está muerta.