Definition of Arteriole
Arteriole: A small branch of an artery that leads to a capillary. The oxygenated hemoglobin (oxyhemoglobin) makes the blood in arterioles (and arteries) look bright red.Source: MedTerms™ Medical Dictionary
Last Editorial Review: 5/13/2016
Drug Medical Dictionary of Terms by Letter
Medical Dictionary Term:
Get the latest treatment options.