- 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.
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.|Russell Saunders|April 16, 2014|DAILY BEAST
In the past, measles in the community effectively provided a booster for vaccinated people.A Fully Vaccinated Woman Contracted and Then Spread Measles. WTF?|Elizabeth Lopatto|April 15, 2014|DAILY BEAST
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|Michelle Cottle|May 13, 2013|DAILY BEAST
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|Michael Daly|June 26, 2012|DAILY BEAST
Booster programs supporting football and basketball at all colleges and universities should be banned.
He supposed that either Peggy had given herself away, or that poor old "Booster" had found her out.The Tree of Heaven|May Sinclair
He laid over and sliced into a mass of Messerschmitts ahead of him, opening his throttle wide and cutting in his booster.A Yankee Flier with the R.A.F.|Rutherford G. Montgomery
A booster is a device which keeps the water hot up to the faucet (Fig. 75).Mechanical Devices in the Home|Edith Louise Allen
The superheater, the arch, the booster, and the feed-water heater together vastly increase the power of the steam locomotive.Our Railroads To-Morrow|Edward Hungerford
The booster supply was sufficient to take care of only a relatively small fraction of the toxic gas actually produced.America's Munitions 1917-1918|Benedict Crowell
British Dictionary definitions for booster
- 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