Definition of "defamer" [de•fam•er]

• One who defames. (noun)

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• "If you can find the defamer, the need to sue the ISP may be reduced."
• "It would take too long to go into here I have a life and work, but as a general matter you go after the ISP for disclosure of the identity, allowing the anonymous “defamer” to attempt to squash the release of the information."
• "Klein said that the ZOA is “appalled and perturbed that President Obama has turned to this clear apologist for Arab autocracies, facilitator of anti-Semitic smears and vicious defamer of Israel, when seeking someone to occupy a senior appointment in our intelligence community.”"