Vasoconstrictor

noun

Definitions

Noun
  1. 1
    Any substance that causes vasoconstriction.

    "“Anyone have any nasal spray?” I asked. “Afrin specifically?” Afrin is basically neosynephrine, a potent vasoconstrictor, and would be ideal to put on a tissue stuffed deeply in the nose."

  2. 2
    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 wordnet

Etymology

From vaso- + constrictor.

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