the speech act of answering an attack on your assertions
His refutation of the charges was short and persuasive. In defense he said the other man started it.
source: WordNet 3.0
any evidence that helps to establish the falsity of something
source: WordNet 3.0
the act of determining that something is false
source: WordNet 3.0
The act or process of refuting or disproving, or the state of being refuted; proof of falsehood or error; the overthrowing of an argument, opinion, testimony, doctrine, or theory, by argument or countervailing proof.