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

Before vaccination was widely available, about 1,000 people developed chronic disability from acute encephalitis caused by measles annually, according to the CDC. — Jen Christensen, CNN Money, 16 Sep. 2026

The ChildProtect program at Penn Medicine Lancaster General Health has continued to provide free vaccinations for uninsured children in Lancaster County usually at in remote, rural areas. — Mary Kekatos, ABC News, 16 Sep. 2026

Rabies is almost always fatal once the initial symptoms appear, but it can be prevented through vaccination, effective surveillance and prompt access to post-exposure prophylaxis. — Nayara Batschke, Los Angeles Times, 15 Sep. 2026

Of that, a significant portion went to expenses directly related to responding to the pandemic, such as vaccination. — Molly Morrow, Chicago Tribune, 15 Sep. 2026

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