Definition of "tarnishing" [tarnishing]

• Present participle of tarnish. (verb)

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• "And Republicans have been working so hard in tarnishing President Obamas image ..... they'll be crying in their beers tonight."
• "The violent protestors are once again tarnishing an otherwise valid argument that "free trade" is politico-babble and simply rubbish."
• "His ridiculous decision has given the judiciary a bad name tarnishing its reputation and ruining its image."