from The American Heritage® Dictionary of the English Language, 4th Edition
- n. Dilation of a blood vessel, as by the action of a nerve or drug.
from Wiktionary, Creative Commons Attribution/Share-Alike License
- n. dilation of the blood vessels
from WordNet 3.0 Copyright 2006 by Princeton University. All rights reserved.
- n. dilation of blood vessels (especially the arteries)
Sorry, no etymologies found.