- immunisation (UK)
NounImmunization (countable and uncountable; plural Immunizations)
- (US, uncountable) The process by which an individual is exposed to a material that is designed to prime his or her immune system against that material.
- Immunization against influenza is important for all child-care workers.
- (US, countable) One such exposure.
- The first immunization a baby gets is against HBV.
process of immunization
an instance of immunization
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