Vasoconstrictor

3 definitions found

From The Collaborative International Dictionary of English v.0.48 [gcide]:

  Vasoconstrictor \Vas`o*con*strict"or\, n. (Medicine, Physiology)
     A substance which causes constriction of the blood vessels.
     Such substances are used in medicine to raise abnormally low
     blood pressure.
     [PJC]



From The Collaborative International Dictionary of English v.0.48 [gcide]:

  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}.
     [1913 Webster]

From WordNet (r) 2.0 [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}]