いもむし 芋虫 LinksSentence search for 芋虫Sentence search for いもむしSentence search for イモムシKanji details for 芋 and 虫Edit in JMdict Noun1. hornworm (caterpillar of a hawk moth); (hairless) caterpillarUsually written using kana alone, See also 雀蛾Other formsイモムシ Discussions Log in to talk about this word.