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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

The "short answer is we don't know for sure" what actually led to the reduction in size of Rosie's biggest tumour, said Pall Thordarson, director of UNSW's RNA institute which created the vaccine.

From Barron's • Mar. 30, 2026

When Southam reported his results, the press hailed them as a tremendous breakthrough that could someday lead to a cancer vaccine.

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