beta-blocker

noun
be·​ta-block·​er | \ ˈbā-tə-ˌblä-kər How to pronounce beta-blocker (audio) \

Definition of beta-blocker

: 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

Other Words from beta-blocker

beta-blocking \ ˈbā-​tə-​ˌblä-​kiŋ How to pronounce beta-blocker (audio) \ adjective

First Known Use of beta-blocker

1965, in the meaning defined above

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The first known use of beta-blocker was in 1965

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Dictionary Entries Near beta-blocker

betabacterium

beta-blocker

beta brass

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Cite this Entry

“Beta-blocker.” Merriam-Webster.com Dictionary, Merriam-Webster, https://www.merriam-webster.com/dictionary/beta-blocker. Accessed 29 Nov. 2021.

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More Definitions for beta-blocker

beta-blocker

noun

English Language Learners Definition of beta-blocker

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

beta-blocker

noun
be·​ta-block·​er | \ -ˈbläk-ər How to pronounce beta-blocker (audio) \

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

More from Merriam-Webster on beta-blocker

Britannica.com: Encyclopedia article about beta-blocker

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