Shellfish; a general term for marine animals with shells (bivalves, gastropods, etc.), used in culinary and scientific contexts.
貝類はタンパク質やミネラルが豊富で、健康的な食材として人気がある。
Shellfish are rich in protein and minerals and are popular as healthy ingredients.
海辺の博物館で貝類の標本を見て回った。
I looked around the shellfish specimens at the coastal museum.
市場で新鮮な貝類を買って、家で鍋にして食べた。
I bought fresh shellfish at the market and cooked them in a hot pot at home.