"refutation" in the noun sense

1. refutation, defense, defence

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"

2. disproof, falsification, refutation

any evidence that helps to establish the falsity of something

3. falsification, falsifying, disproof, refutation, refutal

the act of determining that something is false

Source: WordNet® (An amazing lexical database of English)

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