vaccinate
verb (used with object)
to inoculate with the vaccine of cowpox so as to render the subject immune to smallpox.
vaccinated
-
past participleof vaccinate.past participle
A verb form used in perfect and passive verb constructions and that can also function as a modifier.
-
past tense formof vaccinate.past tense
Used to describe completed actions or previous habitual actions.
vaccinateverb (used with object)to inoculate with the vaccine of cowpox so as to render the subject immune to smallpox.
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.
About a quarter of the county’s large Amish community were vaccinated against measles as of last year, according to a 2025 state health department report.
From The Wall Street Journal ● Sep. 4, 2026
Researchers found that vaccinated adults had a 24% lower risk of dementia compared with those who did not receive the vaccine.
From Science Daily ● Aug. 25, 2026
Scotland's chief veterinary officer Sheila Voas has urged farmers to get their sheep and cattle vaccinated - but some vets are finding the treatment is in short supply.
From BBC ● Aug. 17, 2026
The cats are all fixed, vaccinated, tested for FIV/Felv, microchipped and treated for fleas and worms.
From Los Angeles Times ● Aug. 10, 2026
“No, I haven’t. You see he’s an old dog. He was vaccinated long ago.”
From "Travels with Charley in Search of America" by John Steinbeck
