agnathan /'æɡnəθən/ 📖 中文释义 a. 无下巴的, 缺少下巴的 🧩 词形变化 复数 agnathans 📘 English Definition(英文释义) n. eel-shaped vertebrate without jaws or paired appendages including the cyclostomes and some extinct forms ← Agnatha A 字母词表 agnathans →