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thorium

The correct spelling is thorium.

How to pronounce thorium

noun

IPA: /ˈθɔːɹiəm/

Say it like: Tho-riu-m

The correct spelling is thorium. 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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Definition

noun

  1. 1.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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