invalidate
英 [ɪn'vælɪdeɪt]
美[ɪn'vælɪdet]
- vt. 使无效；使无价值
英英释意
- 1. declare invalid;
- "The contract was annulled"
- "void a plea"
- 2. of cheques or tickets
- 3. show to be invalid
- 4. take away the legal force of or render ineffective;
- "invalidateas a contract"