单词 | thoro- |
释义 | thoro-|ˈθɔərəʊ| combining form of thorium, in names of compound salts, minerals, etc. e.g. thoroˈgummite Min. [gummite: see quot. 1889], a hydrated thorosilicate of uranium; thoroˈsilicate Chem., a silicate in which part of the silicon is replaced by thorium.
1889Amer. Jrnl. Sc. & Art XXXVIII. 481 We name this mineral thoro-gummite, because it is a gummite in which the water has been replaced by the thorite molecule. Ibid. 480 It seems better to regard the mineral as a hydrated thoro-silicate of uranium, rather than as a urano-silicate of thorium. 1909Cent. Dict. Supp., Thorogummite..like other native compounds of thorium and uranium, has marked radio-active properties. |

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