けむし 毛虫 Wanikani level 5 Play audio LinksSentence search for 毛虫Sentence search for けむしKanji details for 毛 and 虫Edit in JMdict Noun1. hairy caterpillar; woolly bearちょう蝶はせいちょう成長したけむし毛虫である。A butterfly is a mature caterpillar.Noun2. pest; nudnik (nudnick) Discussions Log in to talk about this word.