noun
thin-shelled bivalve having the right valve deeply notched
• Syn: ↑Anomia ephippium
• Hypernyms: ↑oyster
• Member Holonyms: ↑Anomia, ↑genus Anomia
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noun1. : a windowpane oyster (Placuna sella) of the Indian and Pacific oceans having a broad arch like a saddle
2. : a mollusk of Anomia or a related genus
Useful english dictionary. 2012.