Simple past tense and past participle of debunk.(verb)
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Use "debunked" in a sentence
"President Obama has once again debunked the obviously trumped up deceptive, manipulative, fear driven tactics of the opponents of health care reform."
"For example, the second myth debunked is about euthanasia. the only people talking about euthanasia are the proponents of the bill."
"Hoodathunk (sponsored by Scroomall Health Corp) says: debunked is the natural state of trolls."