特とく定てい疾しっ患かんMeaningsNoun1. diseases specified by the Japanese government as being worrisome, having no known treatment and of unknown causesKanji used特special定define疾rapidly患afflictedPitch accentとくていしっかんComposed of特とく定ていspecific; particular; designated; special; specifying; designating; identifying; pinpointingNo-adjective疾しっ患かんdisease; illness; disorder; condition; ailmentNoun