- a person or thing that boosts, especially an energetic and enthusiastic supporter.
- Electricity. a device connected in series with a current for increasing or decreasing the nominal circuit voltage.
- Railroads. any machine, device, phenomenon, etc., that helps to move a train, as a tailwind, downgrade, roller bearings, or especially a helper locomotive.
- Military. an explosive more powerful than a primer, for ensuring the detonation of the main charge of a shell.
- 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.
- Medicine/Medical. Also called booster dose, booster shot. a dose of an immunizing substance given to maintain or renew the effect of a previous one.
- Pharmacology. 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.
- Slang. a shoplifter or petty thief.
Origin of booster
Examples from the Web for booster
There is a set of booster vaccines at about kindergarten age, with a little bit of variation from practice to practice.Jenny McCarthy Says She’s Never Been Anti-Vaccine. Yeah, Right.
April 16, 2014
In the past, measles in the community effectively provided a booster for vaccinated people.A Fully Vaccinated Woman Contracted and Then Spread Measles. WTF?
April 15, 2014
But both are delivering a booster shot of testosterone to the GOP in a way few have managed to pull off of late.Squishes, Step Aside: Ted Cruz and Chris Christie’s Old-School Manliness
May 13, 2013
One cop who worked on the case joked that they would need a booster seat for the defense table.Families Decry Supreme Court Decision on Juvenile Life Without Parole
June 26, 2012
Booster programs supporting football and basketball at all colleges and universities should be banned.Time to Kill Miami Football
August 19, 2011
The primary—ah, booster, as you say, breaks free at twelve miles.The Big Tomorrow
Like the rest of you, I knew nothing of the true action of the booster.The Long Voyage
Carl Richard Jacobi
They haven't got the booster or anything like it, or they'd have used it.Masters of Space
Edward Elmer Smith
One is reduced to the figures of the real estate "booster" for terms of proportion.California
"Be a Booster," it advises, and no one can say that it does not live up to its principles.Abroad at Home
- a person or thing that supports, assists, or increases power or effectiveness
- Also called: launch vehicle 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
- slang, mainly US a shoplifter
Word Origin and History for booster
1890, "one who boosts" something, agent noun from boost (v.). Electrical sense is recorded from 1894. Young child's booster chair is attested under that name from 1960.
- An additional dose of an immunizing agent, such as a vaccine or toxoid, given at a time after the initial dose to sustain the immune response elicited by the previous dose of the same agent.booster dose booster shot
- An additional dose of an immunizing agent, such as a vaccine or toxoid, given at a time period of weeks to years after the initial dose to sustain the immune response elicited by the first dose. Tetanus, diphtheria, and measles vaccines are commonly given in booster doses.