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

Kindergarten vaccination rates in KCKPS are among the lowest in the state, according to data from the Kansas Department of Health and Environment. —Matthew Kelly, Kansas City Star, 5 Nov. 2025

Latino adults were significantly less likely than adults from most other racial and ethnic groups to get a covid shot last season, with a vaccination rate around 15%. —Phillip Reese, CNN Money, 5 Nov. 2025

Protect vaccinations and immunization systems. —Pien Huang, NPR, 4 Nov. 2025

Even when a state’s overall vaccination rate looks healthy, there might be specific towns or school districts where rates are dangerously low – leaving those areas vulnerable to disease outbreaks. —Anthony Bald, The Conversation, 3 Nov. 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