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booster

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noun boost·er \ˈbü-stər\

Definition of booster

  1. :  one that boosts: as a :  an enthusiastic supporter b :  an auxiliary device for increasing force, power, pressure, or effectiveness c slang :  shoplifter d :  a radio-frequency amplifier for a radio or television receiving set e :  the first stage of a multistage rocket providing thrust for the launching and the initial part of the flight f :  a substance that increases the effectiveness of a medicament; especially :  booster shot



Examples of booster

  1. These exercises are real metabolism boosters.

  2. Music is my favorite mood booster.

  3. A sincere compliment can be a true confidence booster.

  4. The university has a number of wealthy boosters who contribute generously each year.

  5. a new design for rocket boosters



1888

First Known Use of booster

1888


Medical Dictionary

booster

play
noun boost·er \ˈbü-stər\

Medical Definition of booster

  1. :  a substance that increases the effectiveness of a medicament; especially :  booster shot






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