Thorium

noun

/ˈθɔːɹiəm/

Word Frequency: 0.8

Definitions

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

Synonyms

thorinum th atomic number 90 uranium thulium thorium emanation thallium thorin thorite thoria terbium thorianite

Rhymes With

bohrium

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