あおいがい 葵貝 LinksSentence search for 葵貝Sentence search for あおいがいSentence search for アオイガイKanji details for 葵 and 貝Edit in JMdict Noun1. eggcase (shell) of the greater argonautUsually written using kana alone, See also 貝蛸Noun2. greater argonaut (species of paper nautilus, Argonauta argo)ColloquialOther formsアオイガイ Discussions Log in to talk about this word.