pressor
- 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
- a increasing (or tending to increase) blood pressure
pressor reflexes
- When he clamped the kidney arteries of dogs and cut off their blood supply, an unknown "pressor substance" was produced which irritated the adrenal glands, capping the kidneys .
- After that, it was one strong measure after another: antibiotics by intravenous injection; "pressor" drugs to normalize the blood pressure; carbon dioxide, by mask, to help .