polioencephalitis
noun
po·lio·en·ceph·a·li·tis
| \ ˌpō-lē-(ˌ)ō-in-ˌsef-ə-ˈlīt-əs
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plural polioencephalitides\ -ˈlit-ə-ˌdēz
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Medical Definition of polioencephalitis
: inflammation of the gray matter of the brain