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[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
late Middle English
1375-1425; late Middle English (< Middle French) < Medieval Latin artēriālis. See artery, -al1
Related forms
arterially, adverb
nonarterial, adjective
postarterial, adjective Unabridged
Based on the Random House Dictionary, © Random House, Inc. 2018.
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British Dictionary definitions for arterial


of, relating to, or affecting an artery or arteries: arterial 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 branches: an arterial road
Derived Forms
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
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Word Origin and History for arterial

early 15c., from French artérial (Modern French artériel), from Latin arteria; see artery.

Online Etymology Dictionary, © 2010 Douglas Harper
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arterial in Medicine

arterial ar·te·ri·al (är-tēr'ē-əl)

  1. Of or relating to one or more arteries or to the entire system of arteries.

  2. Of, relating to, or being the bright red oxygenated blood in the arteries.

ar·te'ri·al·ly adv.
The American Heritage® Stedman's Medical Dictionary
Copyright © 2002, 2001, 1995 by Houghton Mifflin Company. Published by Houghton Mifflin Company.
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arterial in Science
Any of the blood vessels that carry oxygenated blood away from the heart to the body's cells, tissues, and organs. Arteries are flexible, elastic tubes with muscular walls that expand and contract to pump blood through the body.

arterial adjective (är-tîr'ē-əl)
The American Heritage® Science Dictionary
Copyright © 2002. Published by Houghton Mifflin. All rights reserved.
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