thorium

Thor +‎ -ium

• enPR: thôr'ēəm, IPA^(key): /ˈθɔːɹiəm/

thorium (uncountable)

1. A chemical element (symbol Th) with atomic number 90.

• thorinum (former alternative form; obsolete)

thorium

1. thorium

Ultimately from Swedish torium or New Latin thorium. This etymology is incomplete. You can help Wiktionary by elaborating on the origins of this term.

• IPA^(key): /ˈtoː.riˌʏm/

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• Hyphenation: tho‧ri‧um

thorium n (uncountable)

1. thorium [from mid 19th c.]

• thoriumcentrale
• thoriumreactor

• IPA^(key): /tɔ.ʁjɔm/

thorium m (uncountable)

1. thorium

• “thorium” in le Trésor de la langue française informatisé (The Digitized Treasury of the French Language).

• (Classical) IPA^(key): /ˈtʰoː.ri.um/, [ˈtʰoː.ri.ʊ̃]

thōrium n (genitive thōriī); second declension

1. thorium

Second-declension noun (neuter).

From Thor, a variant of Tor, from Old Norse Þórr, +‎ -ium

thorium n (definite singular thoriumet, uncountable)

1. thorium, chemical element, symbol Th

• “thorium” in The Bokmål Dictionary.
• “thorium” in Det Norske Akademis ordbok (NAOB).

From Thor, a variant of Tor, from Old Norse Þórr, +‎ -ium

thorium n (definite singular thoriumet, uncountable)

1. thorium, chemical element, symbol Th

• “thorium” in The Nynorsk Dictionary.