| Noun | 1. | choriomeningitis - a cerebral meningitis with cellular infiltration of the meninges lymphocytic choriomeningitis - a form of viral meningitis caused by a virus carried by the common house mouse meningitis - infectious disease characterized by inflammation of the meninges (the tissues that surround the brain or spinal cord) usually caused by a bacterial infection; symptoms include headache and stiff neck and fever and nausea |