meningitis

Definition / meaning of meningitis

Inflammation of the meninges (three thin layers of tissue that cover and protect the brain and spinal cord). Meningitis is usually caused by a bacterial or viral infection, but sometimes is caused by cancer, drug allergies, or inflammatory diseases.

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Find More About 'meningitis'

Source(s):

The Web site of the National Cancer Institute (http://www.cancer.gov/)

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