Superfundnoun [ S or U ]
uk/ˈsuːpəfʌnd/usGOVERNMENT, FINANCE, ENVIRONMENTmoney provided by the US government for cleaning areas affected by pollution:
The Environmental Protection Agency took over planning an initial cleanup last fall as part of a Superfund action spanning six miles of the river.
Twenty-three sites in Santa Clara County sit on the federal Superfund list, most of them involving computer-chip solvents.
a Superfund site/law/program