Main Entry: nul·li·fi·ca·tion

Pronunciation: \ˌnə-lə-fə-ˈkā-shən\

Function: noun

Date: 1798

1 : the act of nullifying : the state of being nullified
2 : the action of a state impeding or attempting to prevent the operation and enforcement within its territory of a law of the United States
3 : jury nullification

— nul·li·fi·ca·tion·ist \-sh(ə-)nist\ noun