nullification

noun

The act of nullifying or the state of being nullified.

The action by a state not to enforce a federal law as improperly encroaching on the scope of state power.

A theory justifying such action.

The act of nullifying; a rendering void and of no effect, or of no legal effect; specifically, in U. S. hist., the action of a State intended to abrogate within its limits the operation of a federal law, under the assumption of absolute State sovereignty.

The act of nullifying; a rendering void and of no effect, or of no legal effect.