あおいがい・アオイガイ

葵貝

表記・読み：あおいがい・アオイガイ

1. 1

   eggcase (shell) of the greater argonaut

   名詞word usually written using kana alone
2. 2

   greater argonaut (species of paper nautilus, Argonauta argo)

   名詞colloquial