vasodilatation

American  

[vas-oh-dil-uh-tey-shuhn, -dahy-luh-, vey-zoh-] / ˌvæs oʊˌdɪl əˈteɪ ʃən, -ˌdaɪ lə-, ˌveɪ zoʊ- /

Also vasodilation

noun

Physiology.

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

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Etymology

Origin of vasodilatation

First recorded in 1895–1900; vaso- + dilatation

Example Sentences

We know that when the pulse rate is constant, vasodilatation causes a fall in diastolic pressure and a rise in pulse pressure.

From Arteriosclerosis and Hypertension: with Chapters on Blood Pressure, 3rd Edition. by Warfield, Louis Marshall

Abnormal vasodilatation seriously interferes with the normal circulation, and causes venous congestion, abnormal increase in venous blood pressure, and the consequent danger of shock and death.

From Disturbances of the Heart by Osborne, Oliver T. (Oliver Thomas)

We may probably associate the general tendency to vasodilatation during early pregnancy with the tendency to goitre; Freund found an increase of the thyroid in 45 per cent. of 50 cases.

From Studies in the Psychology of Sex, Volume 5 Erotic Symbolism; The Mechanism of Detumescence; The Psychic State in Pregnancy by Ellis, Havelock