noun \-ˌblä-kər\

medical : a drug that helps prevent heart attacks by lowering high blood pressure

Full Definition of BETA-BLOCKER

:  any of a class of drugs (as propranolol) that decrease the rate and force of heart contractions and lower high blood pressure by blocking the activity of beta-receptors
be·ta–block·ing \-kiŋ\ adjective

First Known Use of BETA-BLOCKER


Rhymes with BETA-BLOCKER


noun \-ˈbläk-ər\   (Medical Dictionary)

Medical Definition of BETA–BLOCKER

: any of a group of drugs (as propranolol) that combine with and block the activity of a beta-receptor to decrease the heart rate and force of contractions and lower high blood pressure and that are used especially to treat hypertension, angina pectoris, and ventricular and supraventricular arrhythmias—compare alpha-blocker


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