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immune system
noun
a diffuse, complex network of interacting cells, cell products, and cell-forming tissues that protects the body from pathogens and other foreign substances, destroys infected and malignant cells, and removes cellular debris: the system includes the thymus, spleen, lymph nodes and lymph tissue, stem cells, white blood cells, antibodies, and lymphokines.
immune system
The body system in humans and other animals that protects the organism by distinguishing foreign tissue and neutralizing potentially pathogenic organisms or substances. The immune system includes organs such as the skin and mucous membranes, which provide an external barrier to infection, cells involved in the immune response, such as lymphocytes, and cell products such as lymphokines.
See also autoimmune disease immune response
immune system
The system in the body that works to ward off infection and disease. Central to this system are the white blood cells. Some white blood cells produce antibodies in response to specific antigens that may invade the body; others function as scavengers to fight infection by destroying bacteria and removing dead cells.
Word History and Origins
Origin of immune system1
Example Sentences
These work by preventing cancer cells from evading detection by the immune system.
The significance of this discovery became clearer when a Japanese study on supercentenarians, meaning individuals who live well past 100, found that this same T helper cell subset was abundant in their immune systems.
Many of the compound's benefits stem from its effects on the immune system.
The goal is to provide season-long protection against flu without relying on a patient’s own immune system.
A short run triggered temporary inflammation and "metabolic chaos," while regular training restored balance and strengthened the immune system.
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