|1.||a person or thing that supports, assists, or increases power or effectiveness|
|2.||Also called: launch vehicle the first stage of a multistage rocket|
|a. a radio-frequency amplifier connected between an aerial and a receiver to amplify weak incoming signals|
|b. a radio-frequency amplifier that amplifies incoming signals, retransmitting them at higher power|
|4.||another name for supercharger|
|5.||short for booster dose|
|6.||slang chiefly (US) a shoplifter|
|a supplementary injection of a vaccine given to maintain the immunization provided by an earlier dose|
booster boost·er (bōō'stər)
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. Also called booster dose, booster shot.
|booster (b'stər) Pronunciation Key
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.