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
Recent Examples on the Web
As research continues, there will develop a clearer understanding of how cannabis interacts with the immune system during viral infections.
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Tribune Content Agency, The Mercury News, 15 Nov. 2024
Adequate sleep is essential for keeping your immune system strong.
—Judy Koutsky, Forbes, 2 Nov. 2024
Guillain-Barré syndrome is a side effect that takes place when your immune system attacks healthy nerve cells, leading to muscle weakness and paralysis in some cases.
—Gordon G. Chang, Newsweek, 31 Oct. 2024
In general, a lymph node is a checkpoint along the route of your lymphatic system, a part of your immune system that’s responsible for catching and filtering out foreign substances that could cause harm.
—Erica Sloan, SELF, 30 Oct. 2024
See all Example Sentences for immune system 
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Tribune Content Agency, The Mercury News, 15 Nov. 2024
Adequate sleep is essential for keeping your immune system strong.
—Judy Koutsky, Forbes, 2 Nov. 2024
Guillain-Barré syndrome is a side effect that takes place when your immune system attacks healthy nerve cells, leading to muscle weakness and paralysis in some cases.
—Gordon G. Chang, Newsweek, 31 Oct. 2024
In general, a lymph node is a checkpoint along the route of your lymphatic system, a part of your immune system that’s responsible for catching and filtering out foreign substances that could cause harm.
—Erica Sloan, SELF, 30 Oct. 2024
See all Example Sentences for immune system
Dictionary Entries Near immune system
Cite this Entry
“Immune system.” Merriam-Webster.com Dictionary, Merriam-Webster, https://www.merriam-webster.com/dictionary/immune%20system. Accessed 29 Nov. 2024.
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