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.
- low temperature
- antidiuretic hormone
- adrenergic drug
- special agent
- general agent
Example sentences of the word pressor
1. Noun, singular or mass
The pressor foot has a spring to hold the fabric down as it is being sewn.
Carefully pull out about three inches of thread through the needle and snip, then lift the pressor foot to remove the fabric.