释义 |
Definition of thoria in English: thorianoun ˈθɔːrɪəˈθɔriə mass nounChemistry Thorium dioxide, a white refractory solid used in making gas mantles and other materials for high-temperature applications. Chemical formula: ThO₂ Example sentencesExamples - The major disadvantage of thoria are the environmental issues due to the exposure to the alpha particles emitted by thorium.
- The Austrian chemist, C. von Welsbach, perfected the thoria gas mantle that improves the light output of coal-gas flame and to this day has not been improved significantly.
Origin Mid 19th century: from thorium, on the pattern of words such as alumina and magnesia. Definition of thoria in US English: thorianounˈTHôrēəˈθɔriə Chemistry Thorium dioxide, a white refractory solid used in making gas mantles and other materials for high-temperature applications. Chemical formula: ThO₂ Example sentencesExamples - The major disadvantage of thoria are the environmental issues due to the exposure to the alpha particles emitted by thorium.
- The Austrian chemist, C. von Welsbach, perfected the thoria gas mantle that improves the light output of coal-gas flame and to this day has not been improved significantly.
Origin Mid 19th century: from thorium, on the pattern of words such as alumina and magnesia. |