actinoid /'æktinɒid/ 📖 中文释义 a. 放射线状的[化] 锕系元素; 锕系 📘 English Definition(英文释义) n. any of a series of radioactive elements with atomic numbers 89 through 103s. having a radial form ← actinohematin A 字母词表 actinoleukin →