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beta blocker

noun, Pharmacology
1.
any of various substances that interfere with the action of the beta receptors: used primarily to reduce the heart rate or force in the prevention, management, or treatment of angina, hypertension, or arrythmias.
Also, beta-blocker.
Compare alpha blocker.
Origin
1975-1980
1975-80
Related forms
beta-blocking, adjective
Dictionary.com Unabridged
Based on the Random House Dictionary, © Random House, Inc. 2014.
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