いわむし 岩虫 LinksSentence search for 岩虫Sentence search for いわむしSentence search for イワムシKanji details for 岩 and 虫Edit in JMdict Noun1. Marphysa sanguinea (species of eunicid worm)Usually written using kana aloneOther formsイワムシ Discussions Log in to talk about this word.