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

Mothers are given a lot of advice about vaccinations during pregnancy and in their baby’s first year, but grandparents may not have those same kind of check-ins with their doctors. — Jacqueline Howard, CNN Money, 4 Nov. 2026

Union’s clinics also are offering vaccinations for infants earlier than normally scheduled, as health experts advise in areas experiencing measles outbreaks. — Peter Smith, Los Angeles Times, 4 Nov. 2026

Health officials urged residents not to touch bats, especially those that appear sick or dead, and to keep their pets’ rabies vaccinations current. — Daniel Hunt, Sacbee.com, 3 Nov. 2026

The boom in vaccine-preventable outbreaks, cases, and tragic deaths is being fueled by slipping vaccination rates nationwide as health misinformation and anti-vaccine sentiments have taken hold. — Beth Mole, ArsTechnica, 3 Nov. 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