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
例句
用作形容词(adj.)
Various mechanisms have been reported, including vasoconstrictor substances, pharmacologic stimuli, and neurohumoral effects.各种机转曾被报告过，包括促血管收缩物质，药物的刺激及神经荷尔蒙的影响。
Since the reduced effective volume is due to extreme vasodilation then a vasoconstrictor can be used and the vasoconstrictor for which there is the most experience is Terlipressin.由于减少的有效血容量起因于血管扩张，血管收缩剂可以用于治疗此病，有效的血管收缩剂是特利加压素。
