polioencephalopathy

Any disease of the gray matter of the brain. [polio- + G. enkephalos, brain, + pathos, suffering]

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po·lio·en·ceph·a·lop·a·thy (po″le-o-en-sef″ə-lopґə-the) [polio- + encephalo- + -pathy] disease of the gray matter of the brain.