alpha blocker

or alpha-blocker

noun

, Pharmacology.

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

alpha-blocker

noun

1. 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

Other Words From

• alpha-blocking adjective