Definition of prevaccination in English:

prevaccination

adjective

  • 1Occurring before the time when vaccination against smallpox became available.

  • 2Medicine and Biology. Occurring, administered, or obtained before an instance or period of vaccination.

Origin

Late 19th century; earliest use found in The Times. From pre- + vaccination.

Pronunciation

prevaccination

/ˌpriːvaksɪˈneɪʃn/