beta–blocker

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noun be·ta–block·er \-ˌblä-kər\

Definition of beta–blocker

  1. :  any of a class of drugs (such as propranolol) that decrease the rate and force of heart contractions and lower high blood pressure by blocking the activity of beta-receptors

beta–blocking

play \-kiŋ\ adjective

First Known Use of beta–blocker

1965


BETA–BLOCKER Defined for English Language Learners

beta-blocker

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noun

Definition of beta–blocker for English Language Learners

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


Medical Dictionary

beta–blocker

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noun be·ta–block·er \-ˈbläk-ər\

Medical Definition of beta–blocker

  1. :  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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