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|Noun||1.||Sectral - an oral beta blocker (trade name Sectral) used in treating hypertension|
beta blocker, beta-adrenergic blocker, beta-adrenergic blocking agent, beta-blocking agent - any of various drugs used in treating hypertension or arrhythmia; decreases force and rate of heart contractions by blocking beta-adrenergic receptors of the autonomic nervous system
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