immune system
nounDefinition of immune system
: 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
According to Carrie, the disease causes his immune system to over-respond to everything from food in his GI tract to viruses and bacteria. — Claudia Harmata, PEOPLE.com, "This 6-Year-Old Boy Has a Disease So Rare Doctors Say He Is the First to Have It," 13 Aug. 2019 Hart and his team hypothesize that younger animals eat more grass because their immune systems aren’t as good at keeping parasites at bay and because nutritional stress is more detrimental to growing animals than older dogs and cats. — Jason Daley, Smithsonian, "Researchers Think They Know Why Cats Eat Grass," 12 Aug. 2019 That's why a small cadre of patients known as elite controllers has long fascinated researchers: Their immune system alone naturally suppresses HIV for decades without drugs. — Jon Cohen, Science | AAAS, "Can an immune strategy used to treat cancer also wipe out HIV infections?," 7 Aug. 2019 Juice will not detox your body, boost your immune system or cure cancer. — Cara Rosenbloom, Washington Post, "Can juice be part of a healthy diet? Maybe, but it’s better to eat whole produce instead.," 7 Aug. 2019 Staying active by horseback riding, as well as partaking in other rigorous outdoor activities several times a week, Hadid also follows an organic, anti-inflammatory diet that boosts her immune system and helps her stay energized. — Lauren Valenti, Vogue, "Yolanda Hadid’s Latest Instagram Proves That Supermodel Abs Run in the Family," 5 Aug. 2019 Instead, psoriasis stems from an issue with your immune system. — Lambeth Hochwald, Health.com, "4 Things To Know About Scalp Psoriasis, According To Dermatologists," 2 Aug. 2019 But because European honeybees don’t have a natural defense, the mites attack their immune system. — National Geographic, "Episode 8: Honeybee chop shop," 30 July 2019 See every cell of your body filled with divine light. Pour God’s love on our immune systems. — Jim Geraghty, National Review, "Twenty Things You Probably Didn’t Know about Marianne Williamson," 1 July 2019These example sentences are selected automatically from various online news sources to reflect current usage of the word 'immune system.' Views expressed in the examples do not represent the opinion of Merriam-Webster or its editors. Send us feedback.
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