うばがい 姥貝 LinksSentence search for 姥貝Sentence search for うばがいSentence search for 雨波貝Sentence search for ウバガイKanji details for 姥 and 貝Edit in JMdict Noun1. Sakhalin surf clam (Pseudocardium sachalinense)Usually written using kana alone, See also ホッキ貝Other forms雨波貝 【うばがい】、ウバガイ Discussions Log in to talk about this word.