- a person or thing that boosts, especially an energetic and enthusiastic supporter.
- a device connected in series with a current for increasing or decreasing the nominal circuit voltage.
- any machine, device, phenomenon, etc., that helps to move a train, as a tailwind, downgrade, roller bearings, or especially a helper locomotive.
- an explosive more powerful than a primer, for ensuring the detonation of the main charge of a shell.
- Rocketry.
- a rocket engine used as the principal source of thrust in the takeoff of a rocket or missile.
- the first stage containing this engine and its fuel supply, which may or may not be detached from the rocket when the fuel has been consumed.
- a dose of an immunizing substance given to maintain or renew the effect of a previous one.
- a chemical compound, medicinal substance, or the like, that serves as a synergist.
- a radio-frequency amplifier for connecting between a radio or television antenna and the receiving set to intensify the received signal.
- an auxiliary pump, used in a pipeline or other system, to add to or maintain a prevailing amount of pressure or vacuum.
- a shoplifter or petty thief.
- a person or thing that supports, assists, or increases power or effectiveness
- the first stage of a multistage rocket
- radio television
- a radio-frequency amplifier connected between an aerial and a receiver to amplify weak incoming signals
- a radio-frequency amplifier that amplifies incoming signals, retransmitting them at higher power
- another name for supercharger
- short for booster dose
- a shoplifter
