プリオンぷりおんFreq.FrequencyTop 100,000Meanings1nounprionInfectious protein particle associated with diseases such as BSE and Creutzfeldt–Jakob disease. Used in medical and biological contexts.プリオン病びょうは、異い常じょうなプリオンタンパク質しつが原げん因いんで起おこる。