alpha-blocker

英[ˈælfəˌblɔkə]

阿尔法神经阻断剂（一种药物, 可以抵制交感神经末梢在阿尔法受体释放出的正肾上腺素的兴奋性效果, 并引起血管舒张和血压下降）

n. any of various drugs that block alpha-adrenergic receptors; used in treating benign prostatic hyperplasia; relaxes the muscles of the prostate and bladder