vaccination

noun

vac·​ci·​na·​tion ˌvak-sə-ˈnā-shən 

1

: the act of vaccinating

2

: the scar left by vaccinating

Examples of vaccination in a Sentence

Recent Examples on the Web

Keep pets up to date on vaccinations. —Marvin Hurst, CBS News, 10 Dec. 2025

Currently, the dog is too frail to be adopted, LaBella noted, and will need to undergo numerous tests and evaluations before she can be released to the public, including behavioral testing and vaccinations. —Moná Thomas, PEOPLE, 9 Dec. 2025

Health officials say there are currently no treatments for chikungunya, but the disease is vaccine-preventable, and vaccination is recommended for travelers to affected areas. —Bonny Chu, FOXNews.com, 8 Dec. 2025

In the same vein, Garfield advised staying current on vaccinations against illnesses that can cause lung damage, like the flu, COVID-19 and pneumonia. —Helen Carefoot, Flow Space, 8 Dec. 2025

Word History

Etymology

earlier, "inoculation with fluid from cowpox pustules," from vaccine "of cowpox" (in the phrases vaccine matter, vaccine virus) + -ation — more at vaccine

First Known Use

1891, in the meaning defined at sense 1

Phrases Containing vaccination

• anti-vaccination

Rhymes for vaccination

• abdication
• aberration
• abjuration
• abnegation
• abrogation
• acceptation
• acclamation
• acclimation
• accusation
• activation
• actuation
• acylation

Kids Definition

vaccination

noun

vac·​ci·​na·​tion ˌvak-sə-ˈnā-shən 

1

: the act of vaccinating

2

: the scar left by vaccinating

Medical Definition

vaccination

noun

vac·​ci·​na·​tion ˌvak-sə-ˈnā-shən 

1

: the introduction into humans or domestic animals of microorganisms that have previously been treated to make them harmless for the purpose of inducing the development of immunity

oral vaccination

vaccination against smallpox

vaccination for whooping cough

2

: the scar left by vaccinating