basipterygium /beɪsɪptə'rɪdʒjəm/ 📖 中文释义 基鳍骨 📘 English Definition(英文释义) n. A bar of cartilage at the base of the embryonic finsof some fishes. It develops into the metapterygium. ← basipresphenoid B 字母词表 basir →