Meaning & use
vaccine
A substance used to stimulate immunity to a disease, typically administered by injection.
See it in a sentence
The clinic offered a free vaccine against the seasonal flu.
Scientists developed the vaccine in record time during the outbreak.
A note on using this word
"Vaccine" refers to the substance itself, while "vaccination" is the act of administering it.
Words with a similar meaning
immunization
Choose a synonym to suit the sentence. Meanings can overlap without being identical.
Make it your own
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