Hypertext Webster Gateway: "vasoconstrictor"
From Webster's Revised Unabridged Dictionary (1913) (web1913)
Vasoconstrictor \Vas`o*con*strict"or\, a. (Physiol.)
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}.
From WordNet (r) 1.7 (wn)
vasoconstrictor
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 [syn: {vasoconstrictive}]
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