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mercury, quicksilver, hydrargyrum, Hg, atomic number 80 | a heavy silvery toxic univalent and bivalent metallic element; the only metal that is liquid at ordinary temperatures | ||
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Mercury | [in roman_mythology] messenger of Jupiter and god of commerce; counterpart of Greek Hermes | ||
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Mercury | the smallest planet and the nearest to the sun | ||
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mercury | temperature measured by a mercury thermometer |