thorium

C2 Topic:Science & Research

US /ˈθɔːɹiəm/ See IPA manual

Freq #57972

Meanings

1

noun
a soft silvery-white tetravalent radioactive metallic element
2

noun
A chemical element (symbol Th) with atomic number 90. A weakly radioactive, malleable, moderately hard silvery metal that tarnishes black when exposed to air.

Thesaurus

Synonyms

2 noun · a chemical element (symbol... thorinum

Etymology

From Thor + -ium.

Topics

Science & Research

External links

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