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meningitis men·in·gi·tis (měn'ĭn-jī'tĭs)
n. pl. men·in·git·i·des (-jĭt'ĭ-dēz')
Inflammation of the meninges of the brain and the spinal cord, most often the result of a bacterial or viral infection and characterized by fever, vomiting, intense headache, and stiff neck.