Medical term:

vasodilator



vasodilation

 [vas″o-di-la´shun]
1. increase in the caliber of blood vessels.
2. a state of increased caliber of blood vessels. Extreme, abnormal vasodilation is called angiectasis. adj., adj vasodi´lative.
Miller-Keane Encyclopedia and Dictionary of Medicine, Nursing, and Allied Health, Seventh Edition. © 2003 by Saunders, an imprint of Elsevier, Inc. All rights reserved.

va·so·di·la·tion

(vā'sō-dī-lā'shŭn, vas-ō-),
Widening of the lumen of blood vessels.
Synonym(s): vasodilatation
Farlex Partner Medical Dictionary © Farlex 2012

vasodilation

(vā′zō-dī-lā′shən, -dĭ-) also

vasodilatation

(-dĭl′ə-tā′shən, -dī′lə-)
n.
Dilation of a blood vessel, as by the action of a nerve or drug.
The American Heritage® Medical Dictionary Copyright © 2007, 2004 by Houghton Mifflin Company. Published by Houghton Mifflin Company. All rights reserved.

va·so·di·la·tion

(vā'sō-dī-lā'shŭn)
Increase in the caliber of a blood vessel due to relaxation of smooth muscle fibers in the tunica media. This increases blood flow but decreases systemic vascular resistance.
Synonym(s): vasodilatation.
Medical Dictionary for the Health Professions and Nursing © Farlex 2012

vasodilation

See VASODILATATION.
Collins Dictionary of Medicine © Robert M. Youngson 2004, 2005

vasodilation

the expansion of blood vessels by relocation of muscles mainly controlled by the sympathetic nervous system (see AUTONOMIC NERVOUS SYSTEM).
Collins Dictionary of Biology, 3rd ed. © W. G. Hale, V. A. Saunders, J. P. Margham 2005

Vasodilation

The increase in the internal diameter of a blood vessel that results from relaxation of smooth muscle within the wall of the vessel thus causing an increase in blood flow.
Mentioned in: Alpha 1 -Adrenergic Blockers, Minoxidil
Gale Encyclopedia of Medicine. Copyright 2008 The Gale Group, Inc. All rights reserved.

va·so·di·la·tion

(vā'sō-dī-lā'shŭn)
Widening of the lumen of blood vessels.
Medical Dictionary for the Dental Professions © Farlex 2012

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