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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.

Despite its impact, there is still no approved vaccine or targeted treatment.

From Science Daily • Apr. 6, 2026

For older children or adults, a MenB vaccine or booster costs about £220 privately.

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

Schools closed, parents panicked, and the public grew desperate for a vaccine.

From "The Immortal Life of Henrietta Lacks" by Rebecca Skloot