thornback /'θɒ:nbæk/ 📖 中文释义 n. 刺鱼 📘 English Definition(英文释义) n. A European skate (Raia clavata) having thornlike spineson its back.n. The large European spider crab or king crab (Maiasquinado). ← thorn-tipped T 字母词表 thornber →