Thorium

Definition of Thorium

Tho´ri`um
n.1.(Chem.) A metallic element found in certain rare minerals, as thorite, pyrochlore, monazite, etc., and isolated as an infusible gray metallic powder which burns in the air and forms thoria; - formerly called also thorinum. Symbol Th. Atomic weight 232.0.

Related Words

atomic number 90, metal, metallic element, monazite, radiothorium, Th, thoriate, thorite, thorium-228
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Thomsonian
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Thong
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-Thorium-
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Thorny trefoil
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