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单词 beta blocker
释义

WordReference Random House Unabridged Dictionary of American English © 2024
beta block′er, [Pharm.]
  1. Drugsany of various substances that interfere with the action of the beta receptors: used primarily to reduce the heart rate or force in the prevention, management, or treatment of angina, hypertension, or arrythmias.
Also, beta-block′er. Cf. alpha blocker.  beta-block′ing, adj. 
  • 1975–80

Collins Concise English Dictionary © HarperCollins Publishers::
beta-blocker n
  1. any of a class of drugs, such as propranolol, that inhibit the activity of the nerves that are stimulated by adrenaline; they therefore decrease the contraction and speed of the heart: used in the treatment of high blood pressure and angina pectoris
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