a second or later vaccine dose given after the primary dose(s) to increase the immune response to the original vaccine antigen(s) The vaccine given as the booster dose may or may not be the same as the primary vaccine (See also prime-boost )
a person who backs a politician or a team etc ; "all their supporters came out for the game"; "they are friends of the library"
a subsequent dose given some time after initial administration of a vaccine or drug to enhance or restore its effectiveness
A booster is an extra engine in a machine such as a space rocket, which provides an extra amount of power at certain times. Ground controllers will then fire the booster, sending the satellite into its proper orbit
Common term applies to the use of a compressor when used as the first stage in the cascade refrigerating system
A device or amplifier inserted into a line or cable to increase the voltage Transformers may be employed to boost ac voltages The term booster is also applied to antenna preamplifiers
The final high-explosive component of an explosive train that amplifies the detonation from the lead or detonator Thus, a booster charge reliably detonates the main high-explosive charge of the munition
A machine which aspirates gas which has already been compressed and delivers the same at higher pressure
An explosive of special character, usually of high strength and high detonating velocity, generally used in small quantities to improve the performance of another explosive, the latter constituting the major portion of the charge and made up of a less sensitive explosive Also see "Gaine "
A booster is someone who supports a sports team, organization, person, or place very enthusiastically. A former associate of Mr. Pierce's was among the project's boosters. = supporter