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Definitions

vaccine

[vak-seen, vak-seen, -sin] / vækˈsin, ˈvæk sin, -sɪn /


NOUN
injection
Synonyms






Example Sentences

Examples are provided to illustrate real-world usage of words in context. Any opinions expressed do not reflect the views of Dictionary.com.

Even today, there is still no vaccine or specific antiviral therapy available.

From Science Daily • Apr. 6, 2026

Helen and Lee said they feared "another outbreak like Kent could happen again" if the MenB vaccine was not made available to 15-24-year-olds on the NHS.

From BBC • Apr. 3, 2026

Could a patient sue a doctor who counsels against the measles vaccine in the midst of an outbreak?

From Slate • Mar. 31, 2026

"AI transforms a 'needle-in-a-haystack' search into a data-driven selection process, drastically shortening the timeframe between diagnosis and vaccine construction," he said.

From Barron's • Mar. 30, 2026

Robert Oppenheimer and World War II. Salk found a vaccine that prevented polio, and Oppenheimer helped create the bombs that were dropped on Japan and ended the war.

From "The Fourteenth Goldfish" by Jennifer L. Holm