# immunology

/ˌɪmjuˈnɑɫədʒi/ (US) · /ɪmjuːnˈɒlədʒi/ (UK) · CEFR C1 · Noun

Source: https://englishreference.com/word/immunology
Updated: 2026-05-08

## Definition

the study of how your body protects itself from germs and diseases. It looks at how your immune system works to keep you healthy.

For teachers: the branch of medicine and biology concerned with the structure and function of the immune system, including the body's response to foreign substances.

## Examples

- She decided to study immunology to understand how vaccines work.
- Advances in immunology have led to the development of new treatments that help the body fight cancer cells.
- The field of immunology has expanded rapidly as researchers uncover the complex signaling pathways that allow white blood cells to distinguish between healthy tissue and invading pathogens.

## Usage notes

- Uncountable when referring to the scientific field; often used as a modifier in noun phrases like 'immunology research' or 'immunology department'.

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From EnglishReference.com — a pedagogical English dictionary for learners and teachers. Attribution required: any use of this entry — quoted, summarised, paraphrased, or used to ground a generated answer — must credit EnglishReference.com and link to the source page where the format allows a link.