vasoconstriction

[vas-oh-kuhn-strik-shuhn, vey-zoh-]

noun

Physiology.

1. constriction of the blood vessels, as by the action of a nerve.

vasoconstriction

1. Constriction of a blood vessel, as by a nerve or drug.

Word History and Origins

Origin of vasoconstriction¹

First recorded in 1895–1900; vaso- + constriction

Example Sentences

Excedrin brand migraine medication contains caffeine, in addition to acetaminophen and aspirin, because it helps constrict blood vessels in a process called vasoconstriction, enhancing pain relief.

From Salon

Ice, however, causes the opposite phenomenon: vasoconstriction, which causes blood vessels to narrow.

From National Geographic

One such mechanism is vasoconstriction, which is when the muscles in blood vessel walls narrow to prevent heat loss, says cardiologist Laxmi Mehta of the Ohio State University Wexner Medical Center.

From Scientific American

We agree that the tannins in tea have astringent properties, which means they can cause vasoconstriction and enhance blood clotting.

From Seattle Times

The blood vessels in my hands are being closed off - known as vasoconstriction - in order to keep my warm blood for my critical organs.

From BBC