n. 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
中文释义
a. 血管收缩的 n. 血管收缩神经
详细用法及例句
1.
Caffeine is a vasoconstrictor, keeps the blood vessels from opening back up.
