がい バカ貝 LinksSentence search for バカ貝Sentence search for バカがいSentence search for 馬鹿貝Sentence search for ばかがいSentence search for 馬珂貝Sentence search for バカガイKanji details for 貝Edit in JMdict Noun1. Mactra chinensis (species of trough shell)Usually written using kana aloneOther forms馬鹿貝 【ばかがい】、馬珂貝 【ばかがい】、バカガイ Discussions Log in to talk about this word.