immune system
noun
: the bodily system that protects the body from foreign substances, cells, and tissues by producing the immune response and that includes especially the thymus, spleen, lymph nodes, special deposits of lymphoid tissue (as in the gastrointestinal tract and bone marrow), macrophages, lymphocytes including the B cells and T cells, and antibodies
Examples of immune system in a Sentence
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Provides Immune System Support Sunflower seeds contain minerals and nutrients like zinc and selenium that help your body's natural ability to defend against viruses and bacteria and provide other immune system benefits.67
5.
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Cristina Mutchler, Verywell Health, 23 May 2025
Read More: What Is Regeneration and Can Other Organs Regenerate Like the Liver?
Insulin, Made in the Spleen
In this study, researchers set their sights on type 1 diabetes, a condition in which the immune system destroys insulin-producing pancreatic islet cells.
—Discover Magazine, 23 May 2025
Salmonella is an organism which can cause serious and fatal infections in children, the elderly, and other people with weakened immune systems, according to the CDC.
—Natalie Neysa Alund, USA Today, 21 May 2025
Even at low levels, PFAS have been linked to cancer, reproductive harm, immune system damage and other serious health problems.
—Chloe Sorvino, Forbes.com, 21 May 2025
See All Example Sentences for immune system
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Cristina Mutchler, Verywell Health, 23 May 2025
Read More: What Is Regeneration and Can Other Organs Regenerate Like the Liver?
Insulin, Made in the Spleen
In this study, researchers set their sights on type 1 diabetes, a condition in which the immune system destroys insulin-producing pancreatic islet cells.
—Discover Magazine, 23 May 2025
Salmonella is an organism which can cause serious and fatal infections in children, the elderly, and other people with weakened immune systems, according to the CDC.
—Natalie Neysa Alund, USA Today, 21 May 2025
Even at low levels, PFAS have been linked to cancer, reproductive harm, immune system damage and other serious health problems.
—Chloe Sorvino, Forbes.com, 21 May 2025
See All Example Sentences for immune system
Cite this Entry
“Immune system.” Merriam-Webster.com Dictionary, Merriam-Webster, https://www.merriam-webster.com/dictionary/immune%20system. Accessed 5 Jun. 2025.
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