INDUSTRY|chemistry|chemical element
- tóiriam Reference 'tóiriam (Th)'. Hussey, M. Fréamh an Eolais. Coiscéim, Baile Átha Cliath, 2011. ;Faomhadh an téarma seo mar chuid de Thionscadal Lex
- ga
- Definition dúil radaighníomhach ar miotal liath í agus arb é 90 a huimhir adamhach Reference 'tóiriam (Th)'. Hussey, M. Fréamh an Eolais. Coiscéim, Baile Átha Cliath, 2011.
- Thorium
- de
- Definition chemisches Element:Ordnungszahl 90 Reference Römpp,Chemie-Lexicon
- thorium
- en
- Definition chemical element: atomic number 90 Reference The International Union of Pure and Applied Chemistry (IUPAC) - Periodic Table of the Elements: http://www.iupac.org/reports/periodic_table/index.html#names (7/11/2007)
- thorium
- fr
- Definition élément chimique: numéro atomique 90 et symbole Th Reference Grand dictionnaire encyclopédique Larousse
- thorium
- la
- Th
- mul