Immunization definition

ĭmyə-nĭ-zāshən
The process of inducing immunity to an infectious organism or agent in an individual or animal through vaccination .
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A vaccination that induces immunity. A recommended schedule of immunizations for infants and young children includes vaccines against diphtheria, polio, tetanus, measles, mumps, and rubella.
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(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.

noun
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(US, countable) One such exposure.

The first immunization a baby gets is against HBV.

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Other Word Forms

Noun

Singular:
immunization
Plural:
immunizations

Origin of immunization