alpha blocker

or alpha-blocker

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noun Pharmacology.

any of various substances that interfere with the action of the alpha receptors.

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Compare beta blocker.

OTHER WORDS FROM alpha blocker

alpha-blocking, adjective

Dictionary.com Unabridged Based on the Random House Unabridged Dictionary, © Random House, Inc. 2021

Example sentences from the Web for alpha blocker

Alpha Team was killed, Faal told the FBI, while the Bravo members who were not gunned down fled.
The Shadowy U.S. Veteran Who Tried to Overthrow a Country|Jacob Siegel|January 6, 2015|DAILY BEAST
The conspirators were split into two teams, “Alpha” and “Bravo.”
The Shadowy U.S. Veteran Who Tried to Overthrow a Country|Jacob Siegel|January 6, 2015|DAILY BEAST
And when that happens, one “alpha dog” will run the show, usually the oldest, most experienced performer, who “knows more tricks.”
A Backstage Love Affair With Cirque du Soleil|Allison McNearney|December 1, 2014|DAILY BEAST
Former RSD instructor Nathan Kole says he saw firsthand how this “alpha male” marketing can damage students.
The Secret World of Pickup Artist Julien Blanc|Brandy Zadrozny|December 1, 2014|DAILY BEAST

Lohse rushes Sigma Alpha Epsilon, gets a bid, endures pledge term, and then submits to the dehumanizing rigors of Hell Night.
An Ivy League Frat Boy’s Shallow Repentance|Stefan Beck|November 24, 2014|DAILY BEAST
Beta is not formed from alpha; one is first, the other is second, and no one knows why.
A Philosophical Dictionary, Volume 1 (of 10)|Franois-Marie Arouet (AKA Voltaire)
The ring shown in Fig. 117 bears the sacred monogram accompanied by the significant Alpha and Omega.
The Catacombs of Rome|William Henry Withrow
The proper annual motion of the sun Alpha Centauri exceeds 188 millions of leagues per year.
Urania|Camille Flammarion
The star Alpha Cygni comes to us in a direct line at a speed of 500 millions of leagues per year.
Urania|Camille Flammarion
And I remember being jealous because she was chosen by the Kappa Alpha as a candidate.
Ruth Fielding At College|Alice B. Emerson

British Dictionary definitions for alpha blocker

alpha-blocker

noun

any of a class of drugs that prevent the stimulation of alpha adrenoceptors, a type of receptor in the sympathetic nervous system, by adrenaline and noradrenaline and that therefore cause widening of blood vessels: used in the treatment of high blood pressure and prostatic hyperplasia

Collins English Dictionary - Complete & Unabridged 2012 Digital Edition © William Collins Sons & Co. Ltd. 1979, 1986 © HarperCollins Publishers 1998, 2000, 2003, 2005, 2006, 2007, 2009, 2012

Medical definitions for alpha blocker

alpha-blocker

n.

A drug that opposes the excitatory effects of norepinephrine released from sympathetic nerve endings at alpha-adrenergic receptors and causes vasodilation and a decrease in blood pressure.alpha-adrenergic blocking agent

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