pressor Meaning, Definition & Usage

  1. noun 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
    vasoconstrictor; vasoconstrictive.
  2. adjective increasing (or tending to increase) blood pressure
    • pressor reflexes

WordNet

Press"or adjective
Definitions
  1. (Physiol.) Causing, or giving rise to, pressure or to an increase of pressure; as, pressor nerve fibers, stimulation of which excites the vasomotor center, thus causing a stronger contraction of the arteries and consequently an increase of the arterial blood pressure; -- opposed to depressor. Landois & Stirling.

Webster 1913