Last Updated
：2025/11/20
rare earth element
Noun
Japanese Meaning
希土類元素。化学的には、柔らかく光沢があり、場合によっては磁性も示す17種類の金属（ランタノイドに加え、イットリウム、スカンジウム、トリウム、または時にジルコニウムを含む）を指す。
（ plural ）
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(chemistry) Any of a group of seventeen soft, lustrous, sometimes magnetic metals that form trivalent salts; they include the lanthanides plus yttrium, scandium, thorium and sometimes zirconium.
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rare earth element
The rare earth element neodymium is essential for producing powerful permanent magnets used in wind turbines and electric vehicles.
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The rare earth element neodymium is essential for producing powerful permanent magnets used in wind turbines and electric vehicles.
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