[ ahr-teer-ee-uh l ]
/ ɑrˈtɪər i əl /


Physiology. pertaining to the blood in the pulmonary vein, in the left side of the heart, and in most arteries, having been oxygenated during its passage through the lungs and being normally bright red.
Anatomy. of, relating to, or resembling the arteries.
being or constituting a main route, channel, or other course of flow or access, often with many branches: an arterial highway; an arterial drainage system.


a main route, channel, or other course of flow or access: funds to resurface the main arterials of the city.

Origin of arterial

1375–1425; late Middle English (< Middle French) < Medieval Latin artēriālis. See artery, -al1


ar·te·ri·al·ly, adverbnon·ar·te·ri·al, adjectivepost·ar·te·ri·al, adjective Unabridged Based on the Random House Unabridged Dictionary, © Random House, Inc. 2020

British Dictionary definitions for arterials

/ (ɑːˈtɪərɪəl) /


of, relating to, or affecting an artery or arteriesarterial disease
denoting or relating to the usually bright red reoxygenated blood returning from the lungs or gills that circulates in the arteries
being a major route, esp one with many minor branchesan arterial road

Derived forms of arterial

arterially, adverb
Collins English Dictionary - Complete & Unabridged 2012 Digital Edition © William Collins Sons & Co. Ltd. 1979, 1986 © HarperCollins Publishers 1998, 2000, 2003, 2005, 2006, 2007, 2009, 2012

Medical definitions for arterials

[ är-tîrē-əl ]


Of or relating to one or more arteries or to the entire system of arteries.
Of, relating to, or being the bright red oxygenated blood in the arteries.

Other words from arterial

ar•teri•al•ly adv.
The American Heritage® Stedman's Medical Dictionary Copyright © 2002, 2001, 1995 by Houghton Mifflin Company. Published by Houghton Mifflin Company.