Pressor - Definition
pressor
adj 1: increasing (or tending to increase) blood pressure;
"pressor reflexes"
n 1: 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:
vasoconstrictor, vasoconstrictive, pressor]