booster shot

noun
Updated on: 19 Apr 2018

Definition of booster shot

: a supplementary dose of an immunizing agent administered as an injection called also booster, booster dose

Examples of booster shot in a Sentence

  1. He had to get two booster shots at his latest checkup.

Recent Examples of booster shot from the Web

These example sentences are selected automatically from various online news sources to reflect current usage of the word 'booster shot.' Views expressed in the examples do not represent the opinion of Merriam-Webster or its editors. Send us feedback.

First Known Use of booster shot

1944

in the meaning defined above

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BOOSTER SHOT Defined for English Language Learners

booster shot

Definition of booster shot for English Language Learners

  • : an extra amount of a substance (called a vaccine) that is injected with a needle into a person or animal to help protect against a particular disease


Medical Dictionary

booster shot

noun

medical Definition of booster shot

: a supplementary dose of an immunizing agent administered as an injection
  • … the state is requiring older children to have additional booster shots for measles, mumps and rubella.
  • —Ann SchraderThe Denver Post22 July 1997
— see booster, booster dose


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