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

The agency has also delivered six metric tons of emergency medical supplies from its regional emergency reserve in Panama while helping Venezuelan authorities sustain vaccination campaigns aimed at preventing disease outbreaks. — Antonio María Delgado, Miami Herald, 9 July 2026

The vast majority of these pauses – about 90% – are related to data on vaccinations or impacts of common respiratory viruses, such as influenza, COVID-19 and respiratory syncytial virus, or RSV. — John Kubale, The Conversation, 8 July 2026

The spike in cases comes as vaccination rates have tumbled nationwide in recent years — in some areas falling well below the herd immunity threshold experts say is necessary to keep it from spreading. — Seamus Bozeman follow, Los Angeles Times, 8 July 2026

Ironically, the interventions with the strongest scientific evidence for extending healthspan–physical activity, nutrition, sleep, vaccination, mental wellbeing and detecting disease early–tend to be the cheapest. — Angelica Ang, Fortune, 8 July 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