n. [ L. nullificatio contempt. See Nullify. ] The act of nullifying; a rendering void and of no effect, or of no legal effect. [ 1913 Webster ]
Right of nullification (U. S. Hist.), the right claimed in behalf of a State to nullify or make void, by its sovereign act or decree, an enactment of the general government which it deems unconstitutional. [ 1913 Webster ]