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immunology

American  
[im-yuh-nol-uh-jee] / ˌɪm yəˈnɒl 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.

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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.

Scientists already understand a great deal about the makeup and function of blood cells in humans and mice thanks to advances in hematology and immunology.

From Science Daily • May 27, 2026

"We are working through the logistics at pace," but cannot give a precise timeline yet, Teresa Lambe, head of vaccine immunology at the Oxford Vaccine Group, told AFP.

From Barron's • May 19, 2026

BMS gained exclusive rights to four Hengrui oncology/hematology treatments outside China; Hengrui received rights to four BMS immunology drugs in China.

From The Wall Street Journal • May 12, 2026

The project is being led by Danielle Jex, a senior lecturer in immunology, and will investigate whether chemical signals released by endometriosis cells can help cancer cells survive and avoid the immune system.

From BBC • May 8, 2026

In recent years there have been expansion and strengthening in new fields; biologic membranes, immunology, genetics, and cell regulatory mechanisms are currently booming.

From "The Lives of a Cell" by Lewis Thomas

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