WordWeb Online

1. The speech act of answering an attack on your assertions
   "his refutation of the charges was short and persuasive"
   - defense [US], defence [Brit, Cdn]
    
2. Any evidence that helps to establish the falsity of something
   - disproof, falsification
    
3. The act of determining that something is false
   - falsification, falsifying, disproof, refutal

Derived forms: refutations

See also: refute

Type of: answer, determination, evidence, finding, grounds

Encyclopedia: Refutation