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chemoreceptor trigger zone

noun

Medical Definition of chemoreceptor trigger zone

  1. :  an area in or near the area postrema of the brain with receptors that stimulate the reticular formation to induce vomiting … another part of the brain called the chemoreceptor trigger zone is constantly sampling the blood supply for nasty toxins as well.—The San Diego Union-Tribune, 17 Mar. 2004

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