なっとう つと納豆 LinksSentence search for つと納豆Sentence search for つとなっとうSentence search for 苞納豆Kanji details for 納 and 豆Edit in JMdict Noun1. straw-wrapped nattoSee also わら納豆 わらなっとうOther forms苞納豆 【つとなっとう】 Discussions Log in to talk about this word.