noun Biochemistry, Pharmacology.
- a hormone, as epinephrine, or other agent that raises the blood pressure by causing contraction of the arteriole muscles, narrowing the arteriole passage.
- causing an increase in blood pressure by constricting the arteries
- a substance that has such an effect
- Producing constriction of the blood vessels and a consequent rise in blood pressure.
- An agent that causes a rise in blood pressure.