praseodymium /.preiziәu'dimiәm/ 📖 中文释义 n. 镨[化] 镨Pr 📘 English Definition(英文释义) n. a soft yellowish-white trivalent metallic element of the rare earth group; can be recovered from bastnasite or monazite by an ion-exchange process ← praseodymia P 字母词表 praseodymium carbonate →