Top definition
The structure used to put melted down nuclear power plants to rest.
Newscaster: "Jim, what do you think TEPCO and the Japanese Government need to do to stabilize the Fukashima Daiichi Power Plant?"
Jim staring annoyed: "Concrete Sarcophagus"
Newscaster: "You care to explain"
Jim: "I think it speaks for itself"
by Salviati April 12, 2011
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