详细解释:a. 血管收缩的
n. 血管收缩神经
【医】 血管收缩的; 血管收缩神经; 血管收缩药
英语解释：
名词 vasoconstrictor:
any agent that causes a narrowing of an opening of a blood vessel: cold or stress or nicotine or epinephrine or norepinephrine or angiotensin or vasopressin or certain drugs; maintains or increases blood pressure同义词：vasoconstrictive, pressor