booster shot


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

He had to get two booster shots at his latest checkup.
Recent Examples on the Web For those seeking to receive their second shot or booster shot of the COVID-19 vaccine should bring their vaccination card to the event. Beacon-news Staff,, 14 Oct. 2021 It's been over five weeks since Moderna submitted data to the FDA that demonstrated the safety and effectiveness of its booster shot. Sally Pipes, Forbes, 11 Oct. 2021 President Joe Biden received his COVID-19 booster shot on live television in late September. Mckenzie Sadeghi, USA TODAY, 5 Oct. 2021 Clinic patients can schedule their booster shot via MyChart or by calling 216-448-4117. Julie Washington, cleveland, 30 Sep. 2021 On Monday, President Biden received his booster shot and urged eligible Americans to get theirs as soon as possible. Brett Haensel, Fortune, 29 Sep. 2021 About 23% haven’t gotten any shots, President Biden said Monday just before getting his booster shot on national television. Los Angeles Times, 28 Sep. 2021 Those mandates have been implemented by the federal government for its employees, and President Joe Biden stressed the importance of people getting vaccinated Monday while receiving his booster shot. Madeline Holcombe, CNN, 28 Sep. 2021 McConnell's announcement came the same day that President Joe Biden got his own booster shot on live TV. Mary Ramsey, The Courier-Journal, 28 Sep. 2021

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.

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First Known Use of booster shot

1944, in the meaning defined above

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Time Traveler for booster shot

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The first known use of booster shot was in 1944

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Dictionary Entries Near booster shot

booster seat

booster shot

boost pressure

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Statistics for booster shot

Last Updated

21 Oct 2021

Cite this Entry

“Booster shot.” Dictionary, Merriam-Webster, Accessed 24 Oct. 2021.

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More Definitions for booster shot

booster shot


English Language Learners Definition of booster shot

: 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

booster shot


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 Schrader, The Denver Post, 22 July 1997 — see booster, booster dose

More from Merriam-Webster on booster shot

Nglish: Translation of booster shot for Spanish Speakers


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