[proh-pran-uh-lawl, -lol]
noun Pharmacology.
a beta-blocking drug, C 1 6 H 2 1 NO 2 , used in the treatment of hypertension, angina pectoris, and cardiac arrhythmias.

1960–65; pro(pyl) + pr(op)anol + -ol1 Unabridged
Based on the Random House Dictionary, © Random House, Inc. 2014.
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World English Dictionary
propranolol (prəʊˈprænəˌlɒl)
a drug used in the treatment of angina pectoris, arrhythmia, hypertension, and some forms of tremor. Formula: C16H21NO2
[C20: from pro(pyl) + pr(op)anol (from propane + -ol) + -ol]

Collins English Dictionary - Complete & Unabridged 10th Edition
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American Heritage
Medical Dictionary

propranolol pro·pran·o·lol (prō-prān'ə-lôl', -lōl')
A beta-blocker used to treat hypertension, angina pectoris, and cardiac arrhythmia.

The American Heritage® Stedman's Medical Dictionary
Copyright © 2002, 2001, 1995 by Houghton Mifflin Company. Published by Houghton Mifflin Company.
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Example sentences
Propranolol is a beta-blocker, so it blocks the action of adrenaline.
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