beta-blocker

noun
be·ta-block·er | \ˈbā-tə-ˌblä-kər \

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 \ adjective

First Known Use of beta-blocker

1965, in the meaning defined above

Keep scrolling for more

Learn More about beta-blocker

Share beta-blocker

Statistics for beta-blocker

Last Updated

21 Aug 2018

Look-up Popularity

Time Traveler for beta-blocker

The first known use of beta-blocker was in 1965

See more words from the same year

Keep scrolling for more

More Definitions for beta-blocker

beta-blocker

noun

English Language Learners Definition of beta-blocker

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

beta-blocker

noun
be·ta-block·er | \-ˈbläk-ər \

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

See words that rhyme with beta-blocker

Britannica.com: Encyclopedia article about beta-blocker

Comments on beta-blocker

What made you want to look up beta-blocker? Please tell us where you read or heard it (including the quote, if possible).

WORD OF THE DAY

a generally accepted meaning of a word

Get Word of the Day daily email!

Test Your Vocabulary

Great Scrabble Words—A Quiz

  • scrabble-tiles-that-read-scrabble-quiz
  • Which of the following Q-without-U words means the number five in cards or dice?
True or False

Test your knowledge - and maybe learn something along the way.

TAKE THE QUIZ
SCRABBLE® Sprint

Test Your Knowledge - and learn some interesting things along the way.

TAKE THE QUIZ

Love words? Need even more definitions?

Subscribe to America's largest dictionary and get thousands more definitions and advanced search—ad free!