1 文書を見つけるための辞書。

• atomic number 59, pr, praseodymium
• プラセオジム
• a soft yellowish-white trivalent metallic element of the rare earth group; can be recovered from bastnasite or monazite by an ion-exchange process
• 柔らかく黄色味を帯びた白色の3価の希土類金属元素