IPA: /ˌpɒlɪˈnjʊəraɪtɪs/
KK: /pɑlɪˈnʊərɪtɪs/
A medical condition that involves inflammation of multiple peripheral nerves at the same time, often leading to pain, weakness, or numbness in the affected areas.
The patient was diagnosed with polyneuritis after experiencing weakness in both legs and hands.
Polyneuritis → It is formed from "poly-" (from Greek "polus", meaning many) and "neuritis" (from Greek "neuron", meaning nerve, and "itis", meaning inflammation). The word describes the inflammation of many nerves.
Think of 'many' ('poly-') nerves being 'inflamed' ('neuritis') — that's what polyneuritis means.