1) 爺じいが背せ Parts 爺 が 背 Link copied! Meaning Shirabe ① Noun Usually kana chiton (any marine mollusk of the class Polyplacophora); sea cradle ② Noun Japanese chiton (Acanthopleura japonica) Forms ヒザラガイ#297,281ヒザラガイひざらがいひざらがい膝皿貝膝皿貝ひざらがいじいがせじいがせ火皿貝火皿貝ひざらがい石鼈石鼈ひざらがい爺が背爺じいが背せ