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vasodilatation

[vas-oh-dil-uh-tey-shuh n, -dahy-luh-, vey-zoh-] /ˌvæs oʊˌdɪl əˈteɪ ʃən, -ˌdaɪ lə-, ˌveɪ zoʊ-/
noun, Physiology
1.
dilatation of the blood vessels, as by the action of a nerve.
Also, vasodilation
[vas-oh-dahy-ley-shuh n, -di-, vey-zoh-] /ˌvæs oʊ daɪˈleɪ ʃən, -dɪ-, ˌveɪ zoʊ-/ (Show IPA)
.
Origin
1895-1900
1895-1900; vaso- + dilatation
Dictionary.com Unabridged
Based on the Random House Dictionary, © Random House, Inc. 2014.
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vasodilatation in Science
vasodilation (vā'zō-dī-lā'shən, -dĭ-) also vasodilatation
  (vā'zō-dī-lā'shən, -dĭ-)   
Dilation of a blood vessel, as by the action of a nerve or drug.
The American Heritage® Science Dictionary
Copyright © 2002. Published by Houghton Mifflin. All rights reserved.
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