booster

[ boo-ster ]
/ ˈbu stər /

noun

Origin of booster

An Americanism dating back to 1885–90; boost + -er1

OTHER WORDS FROM booster

boost·er·ish, adjective

British Dictionary definitions for booster dose (1 of 2)

booster dose

noun

a supplementary injection of a vaccine given to maintain the immunization provided by an earlier dose

British Dictionary definitions for booster dose (2 of 2)

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

Medical definitions for booster dose

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

Scientific definitions for booster dose

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.