beta-adrenergic blocking agent n.
See beta-blocker.
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| a fool or simpleton; ninny. |
| a calculus or concretion found in the stomach or intestines of certain animals, esp. ruminants, formerly reputed to be an effective remedy for poison. |
| beta-adrenergic blocking agent | |
noun | |
| 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 [syn: beta blocker] |