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2 definitions found
 for booster dose
From The Collaborative International Dictionary of English v.0.48 :

  Booster \Boost"er\ (b[=oo]st"[~e]r), n.
     1. (Elec.) An instrument for regulating the electro-motive
        force in an alternating-current circuit; -- so called
        because used to "boost", or raise, the pressure in the
        circuit.
        [Webster 1913 Suppl.]
  
     2. an enthusiastic supporter.
        [PJC]
  
     3. the first stage of a multistage rocket, providing all or
        part of the driving force at lift-off and until the second
        stage ignites, whether or not the booster stage is
        detached after the fuel is spent. Also called booster
        rocket. In some cases, a booster has been used to assist
        the takeoff of airplanes.
        [PJC]
  
     4. (Med.) an immunizing medication given after an initial
        immunizing treatment, to provide increased or extended
        immunity. Also called booster dose. When in the form of
        an injection, it may be called a booster shot.
        [PJC]
  
     5. any auxiliary device or part of a device to provide
        increased power, force, or effectiveness, as with a
        pumping device.
        [PJC]
  
     6. (Mil.) an explosive charge which is more powerful than a
        primer, used in conjunction with a primer to assure
        detonation of the main charge. Integrated blasting caps
        containing separate compartments for primer and booster
        are used as detonators for certain explosives.
        [PJC]

From WordNet (r) 3.0 (2006) :

  booster dose
      n 1: an additional dose that makes sure the first dose was
           effective [syn: booster, booster dose, booster shot,
           recall dose]

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