Th
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(noun) a soft silvery-white tetravalent radioactive metallic element; isotope 232 is used as a power source in nuclear reactors; occurs in thorite and in monazite sands |
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Synonyms: atomic number 90, thorium |
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Related Words: metal, metallic element |
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| 2. |
(noun) the fifth day of the week; the fourth working day |
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Synonyms: Thursday |
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Related Words: weekday |
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