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  • noun A supposed substance for use in the creation of nuclear bombs and other weapons, about which there are various conspiracy theories.


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  • Red mercury is a substance of debatable existence purportedly used in the creation of nuclear bombs, as well as a variety of unrelated weapons systems. Samples obtained from arrested would-be terrorists invariably consisted of nothing more than various red dyes or powders of little value, which some suspect was being sold as part of a campaign intended to flush out potential nuclear smugglers. (Wikipedia)

    May 23, 2008