[ひざらがい(膝皿貝;火皿貝;石鼈);じいがせ(石鼈;爺が背);ヒザラガイ, hizaragai ( hiza sara kai ; hi sara kai ; ishi betsu ); jiigase ( ishi betsu ; jii ] (n) (1) (uk) chiton (any marine mollusk of the class Polyplacophora); sea cradle; (2) Japanese chiton (Acanthopleura japonica)
[べっこう, bekkou] (n) (1) (See 玳瑁) tortoiseshell (of the hawksbill turtle); bekko; (2) (See 鼈) (in Chinese medicine) tortoiseshell (esp. of the Chinese soft-shelled turtle)