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antiarrhythmic

[ an-tee-uh-rith-mik, -uh-rith-, an-tahy- ]

adjective

  1. of or relating to any substance that prevents, inhibits, or alleviates heartbeat irregularities.

noun

  1. any such substance, as lidocaine.

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Word History and Origins

Origin of antiarrhythmic1

First recorded in 1950–55; anti- + arrhythmic ( def )

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