Immunisation

noun

noun ·Rare ·Advanced level

Definitions

Noun
  1. 1
    Alternative spelling of immunization. UK, alt-of, alternative, countable, uncountable

    "The larger the number of immunised people in the community the less easy is the spread of disease from one person to another. […] For the purpose of creating ‘herd immunity’, as this process is sometimes called, it is necessary to achieve 80 per cent immunisation of the community."

  2. 2
    the act of making immune (especially by inoculation) wordnet
  3. 3
    The process of immunising signalling and traction power supplies so they don't interfere with each other. countable, uncountable

    ""Secondly, we have to find more cost-effective ways of electrifying. And we've had a real breakthrough in the last couple of years in terms of bridge clearances and immunisation, meaning we've been able to take hundreds of millions of pounds off the cost of electrification."

Synonyms

All synonyms
immunizationimmunization

Example

More examples

"The doctor offered the child a lollipop. Against expectation the child said he preferred no lollipop and no jab to getting the immunisation and lollipop."

Etymology

From French immunisation. Equivalent to immunise + -ation or immune + -isation.

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Data sourced from Wiktionary, WordNet, CMU, and other open linguistic databases. Updated March 2026.