vasodilation

noun Physiology.

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

n.

1896, from vasopressor, from vaso-, comb. form of Latin vas “container, vessel” (see vas) + dilation. Related: Vasodilator (1881).

n.

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

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