ハンセン氏し病びょうMeanings1nounHansen's disease; leprosyrare termMedical term for leprosy. The older term 癩病 (らいびょう) is now considered discriminatory and is avoided.ハンセン氏し病びょうは早そう期き治ち療りょうで治なおる病びょう気きです。Hansen's disease is a curable illness with early treatment.