とうかんMeaningsNoun1. perspiration given off during sleep; sweating while sleeping; night sweatsOther spellings盗とう汗かんUsage share unknownOther readings寝ね汗あせ盗汗ねあせねあせKanji in other spellings盗steal汗sweatPitch accentとうかんExamples1寝ね汗あせがひどいんです。I perspire a lot at night.