Last Updated
：2025/11/19
thorium
IPA(Pronunciation)
Noun
uncountable
usually
Japanese Meaning
トリウム：原子番号90の化学元素。記号Th。弱い放射能を持ち、延性があり、適度な硬さの銀色の金属で、空気に触れると黒く変色する。
（ plural ）
Quizzes for review
A chemical element (symbol Th) with atomic number 90: a weakly radioactive, malleable, moderately hard silvery metal that tarnishes black when exposed to air.
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thorium
Researchers are investigating thorium as a safer alternative fuel for next-generation nuclear reactors.
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Researchers are investigating thorium as a safer alternative fuel for next-generation nuclear reactors.
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