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immunology

American  
[im-yuh-nol-uh-jee] / ˌɪm jəˈnɒl ə dʒi /

noun

  1. the branch of science dealing with the components of the immune system, immunity from disease, the immune response, and immunologic techniques of analysis.


immunology British  
/ ˌɪmjʊˈnɒlədʒɪ, ˌɪmjʊnəˈlɒdʒɪk /

noun

  1. the branch of biological science concerned with the study of immunity

"Collins English Dictionary — Complete & Unabridged" 2012 Digital Edition © William Collins Sons & Co. Ltd. 1979, 1986 © HarperCollins Publishers 1998, 2000, 2003, 2005, 2006, 2007, 2009, 2012

immunology Scientific  
/ ĭm′yə-nŏlə-jē /
  1. The scientific study of the structure and function of the immune system.


Other Word Forms

Etymology

Origin of immunology

First recorded in 1905–10; immuno- + -logy

Explanation

Immunology is the science of body systems that protect against infection. It's thanks to immunology that we're able to treat and prevent so many diseases today. Immunology is formed by adding the suffix -ology, or "science," to immune, or "exempt from a disease." Scientists and doctors who specialize in immunology study the way our immune systems function (and sometimes malfunction) as they work to defend us from viruses and bacteria. Immunologists are also instrumental in creating vaccines against new diseases and promising treatments like cancer immunotherapy, which boost the patient's own immune system.

Keep Reading on Vocabulary.com

Vocabulary lists containing immunology

Example Sentences

Examples are provided to illustrate real-world usage of words in context. Any opinions expressed do not reflect the views of Dictionary.com.

See Examples For:

Politicians are now asking how Britain - the country of Edward Jenner, the "father of immunology" - could have allowed its immunisation rates to drop so low, and what could fix it.

From BBC Aug. 3, 2026

J&J’s pharmaceutical business logged a 7.8% gain, driven by cancer drugs like Darzalex and Carvykti, as well as immunology treatments like Tremfya and neuroscience drugs like Spravato.

From The Wall Street Journal Jul. 15, 2026

If approved, half of the funding would go toward the creation of a new immunology and immunotherapy research institute affiliated with the University of California.

From Los Angeles Times Jul. 6, 2026

AbbVie itself believes the deal complements its existing immunology portfolio and accelerates its “clinical presence in the respiratory space.”

From Barron's Jun. 22, 2026

Vincent Racaniello, a professor of microbiology and immunology at Columbia University, who once calculated that he’s grown about 800 billion HeLa cells for his own research, says that restricting HeLa cell use would be disastrous.

From "The Immortal Life of Henrietta Lacks" by Rebecca Skloot

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