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Vinony

thorium

noun

  1. chemical element with the atomic number of 90
L18285 on Wikidata ↗

Wiktionary

Pronunciation: /ˈθɔːɹiəm/

noun

Etymology: Etymology tree English Thor Proto-Indo-European *-om Proto-Italic *-om Latin -umder. English -ium English thorium From Thor + -ium.

  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.