— nullificationist, nullificator , n.
/nul'euh fi kay"sheuhn/ , n.
1. an act or instance of nullifying.
2. the state of being nullified.
3. ( often cap. ) the failure or refusal of a U.S. state to aid in enforcement of federal laws within its limits, esp. on Constitutional grounds.
[ 1620-30; nullification- (s. of nullificatio ) contempt, equiv. to nullificat ( us ) (ptp. of nullificare to despise) + -ion- -ION. See NULLIFY ]