booster

[ boo-ster ]
/ ˈbu stər /

noun

Origin of booster

An Americanism dating back to 1885–90; boost + -er1
Related formsboost·er·ish, adjective
Dictionary.com Unabridged Based on the Random House Unabridged Dictionary, © Random House, Inc. 2019

Examples from the Web for booster

British Dictionary definitions for booster

booster

/ (ˈbuːstə) /

noun

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
  1. a radio-frequency amplifier connected between an aerial and a receiver to amplify weak incoming signals
  2. 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

Collins English Dictionary - Complete & Unabridged 2012 Digital Edition © William Collins Sons & Co. Ltd. 1979, 1986 © HarperCollins Publishers 1998, 2000, 2003, 2005, 2006, 2007, 2009, 2012

Medicine definitions for booster

booster

[ bōōstər ]

n.

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

The American Heritage® Stedman's Medical Dictionary Copyright © 2002, 2001, 1995 by Houghton Mifflin Company. Published by Houghton Mifflin Company.

Science definitions for booster

booster

[ bōōstər ]

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.

The American Heritage® Science Dictionary Copyright © 2011. Published by Houghton Mifflin Harcourt Publishing Company. All rights reserved.