朊病毒 Traditional form: 朊病毒 Pinyin (reading): ruǎnbìngdú Definitions: prion (pathogen) Characters: 朊 - protein 病 - sickness, illness, disease 毒 - poison, venom; drug, narcotic Traditional characters: 朊 - protein 病 - sickness, illness, disease 毒 - poison, venom; drug, narcotic