(n) the federal government's program to locate and investigate and clean up the worst uncontrolled and abandoned toxic waste sites nationwide; administered by the Environmental Protection Agency, Syn. Superfund, Example:some have intimated that the Superfund's money may have turned into a political slush fund
(n) a site where toxic wastes have been dumped and the Environmental Protection Agency has designated them to be cleaned up, Syn. toxic waste area, Superfund site