REFUTATION

falsification, falsifying, disproof, refutation, refutal

(noun) the act of determining that something is false

disproof, falsification, refutation

(noun) any evidence that helps to establish the falsity of something

refutation, defense, defence

(noun) 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® 3.1

Noun

refutation (countable and uncountable, plural refutations)

An act of refuting or disproving; the disproving of an argument, opinion, testimony, doctrine or theory by argument or countervailing proof; evidence of falseness.

Synonyms: confutation, disproof

A vocal answer to an attack on one's assertions.

Source: Wiktionary

Ref`u*ta"tion (rf`*t"shn), n. Etym: [L. refutatio: cf. F. réfutation.]

Definition: 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. Same of his blunders seem rather to deserve a flogging than a refutation. Macaulay.

Source: Webster’s Unabridged Dictionary 1913 Edition