the states'-rights doctrine that a state can refuse to recognize or to enforce a federal law passed by the United States Congress
the act of nullifying; making null and void; counteracting or overriding the effect or force of something
例句
用作名词 (n.)
But this nullification does not affect the validity of the entire air transport contract. 但是，此种条款的无效，不影响整个航空运输合同的效力。
Even where a case is established, our company is still entitled to apply for an official nullification of the clause in question. 若成立，本公司当有保留申请认定该有关条款无效之权利。
美
[ˌnʌləfə'keɪʃən]
