Vasoconstrictor a. : Causing constriction of the blood vessels; as, the vasoconstrictor nerves, stimulation of which causes constriction of the blood vessels to which they go. These nerves are also called vasohypertonic.

Vasoconstrictor n. : A substance which causes constriction of the blood vessels. Such substances are used in medicine to raise blood pressure.

Example:


Taxonomy
vasoconstriction, activation, intracellular, mechanism, blood vessels, Vasoconstrictors, blood, Factors, calcium, body heat, blood flow, free encyclopedia, heat, stimuli, intracellular calcium, smooth muscle contraction, constrict, medications.

Defination from the web:
Vasoconstrictor effects of Cannabis appear to inhibit Migraine (headache) attacks. v • d • e. Cardiovascular system, physiology: cardiovascular physiology ... system · Renin-angiotensin system · Vasoconstrictors/Vasodilators · Autoregulation (Myogenic mechanism, Tubuloglomerular ...