Definition of "perniciously" []

• In a pernicious manner. (adverb)

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• "It affects how we think about and talk about rape, perniciously affecting how we treat rape victims, how we prosecute rapists and how we try to prevent future rapes from occurring."
• "While elementary schools have shown progress on national achievement exams, high-school results have stayed perniciously low."
• "Moreover, compared to those who perniciously enable systemic corruption by obsessing over the punishment of one person, I think Polanski\'s reaction to evident judicial misconduct is laudable."