vasodilation

Scientific  

/ vā′zō-dī-lā′shən,-dĭ- /

1. Dilation of a blood vessel, as by the action of a nerve or drug.

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Example Sentences

As calcium levels fall, the smooth muscles in blood vessel walls relax, causing vasodilation and a drop in blood pressure.

From Science Daily

The bags under your eyes might not be the result of an acute physical injury like a bruised shin, but they, too, are the result of vasodilation and swelling.

From National Geographic

“The combination together . . . it’s like about 30 minutes plus of just vasodilation, a bear’s chasing you, you’re deer in headlights.”

From Salon

But this group also provides important benefits in keeping your blood vessels healthy, by promoting something called "vasodilation."

From Salon

Perhaps the vasodilation due to heat is beneficial over the long term, but I am not sure if there are any studies.

From Seattle Times