ar·​te·​ri·​al | \ är-ˈtir-ē-əl How to pronounce arterial (audio) \

Definition of arterial

 (Entry 1 of 2)

1a : of or relating to an artery
b : relating to or being the bright red blood present in most arteries that has been oxygenated in lungs or gills
2 : of, relating to, or constituting through traffic



Definition of arterial (Entry 2 of 2)

: a through street or highway

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Other Words from arterial


arterially \ -​ē-​ə-​lē How to pronounce arterially (audio) \ adverb

Examples of arterial in a Sentence


one of the main arterials connecting the airport with the city

Recent Examples on the Web: Adjective

The routes are those with high ridership that run on plowed arterial roadways, but some residents are along routes that can’t be served during winter storms, Metro said. Seattle Times Staff, The Seattle Times, "Updates from Seattle’s snowy Monday: Rain coming as warm air moves north," 12 Feb. 2019 In some patients, Dr. Paulus had reported arterial blockages of 60% while the government’s doctors said that the patients’ angiograms—essentially chest X-rays—showed blockage of 30% or less. Kyle Clark And Andrew George, WSJ, "A Second Opinion Becomes a Guilty Verdict," 27 Dec. 2018 Preventing calcium accumulation deep in arterial walls would further advance heart care. WSJ, "Cardiovascular Health Frontier Is Calcium," 8 Oct. 2018 Veletri is also used to treat pulmonary arterial hypertension and Zavesca is indicated for Gaucher disease. Sheila Kaplan, New York Times, "F.D.A. Names and Shames Drug Makers to Encourage Generic Competition," 17 May 2018 Moreover, an Arena drug for pulmonary arterial hypertension, ralinepag, has passed its own Phase 2 trial. Bradley J. Fikes,, "Arena Pharma recovers from weight-loss failure," 22 Mar. 2018 Laukkanen hypothesizes that improved arterial flexibility and dilation reduces the amount of force that moving blood exerts on the blood vessel walls. SELF, "Does the Steam Room at the Gym Actually Do Anything?," 4 Jan. 2019 Warren Mayor Jim Fouts agreed, saying this won't just help the major arterial road, but also enhance the transportation corridor in both cities. Christina Hall, Detroit Free Press, "Mound Road could get $98M federal grant for massive upgrade," 5 June 2018 Advocates said the undergrounding is needed to improve public safety, particularly on Laguna Canyon Road, the city's main inland arterial route. Bradley Zint,, "Laguna to prepare ballot measure for putting utilities underground along key routes," 23 May 2018

Recent Examples on the Web: Noun

Two-way traffic reopened on 23rd Avenue, a major arterial, early last year. Michelle Baruchman, The Seattle Times, "Traffic Lab mailbag: How to deal with parking limits when you go on vacation, what’s happening on 23rd Avenue?," 11 Sep. 2018 Of those, roughly half are expected to meander along the waterfront, while half are expected to use the tunnel, then swing east or west using Mercer Street or other arterials, state officials have long predicted. Mike Lindblom, The Seattle Times, "What will the Highway 99 tunnel opening mean for bus routes, detours and tsunamis? We answer those questions and more," 12 Dec. 2018 Haynes said the Better Naito analysis raises questions about how the city will handle changes to major arterials elsewhere. Andrew Theen,, "PBA still 'concerned' about Better Naito's effect on congestion, calls for more study," 8 Mar. 2018 The site also must have access to an arterial or higher classification road. Colin Campbell,, "Owner appeals decision to reject medical marijuana dispensary near Pasadena," 11 July 2018 Maryland Physician Partners LLC’s bid to open a dispensary at 7609 Energy Parkway in Brandon Woods Business Park was rejected in April because the property did not immediately abut an arterial or higher classified road. Colin Campbell,, "Owner appeals decision to reject medical marijuana dispensary near Pasadena," 11 July 2018 Engineers built its arterials to transport cars, and quickly. Aarian Marshall, WIRED, "Save Lives With Smarter, Slower Streets—Not Self-Driving Cars," 11 May 2018 Others, however, have called them essential, especially considering the frequency that Laguna Canyon Road — a main arterial thoroughfare — closes because of downed power lines. Bradley Zint,, "Laguna council pushes initiative to place utility lines underground to July 17 so mayor can vote," 10 July 2018 In seeking the variance, New Land also cited the narrow lot's location on a corner that includes a major arterial: South Second Street. Tom Daykin, Milwaukee Journal Sentinel, "New Land proposes 48-unit apartment building near its Trio Mke project in Walker's Point," 21 June 2018

These example sentences are selected automatically from various online news sources to reflect current usage of the word 'arterial.' Views expressed in the examples do not represent the opinion of Merriam-Webster or its editors. Send us feedback.

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First Known Use of arterial


15th century, in the meaning defined at sense 1a


1920, in the meaning defined above

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Statistics for arterial

Last Updated

13 Apr 2019

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Time Traveler for arterial

The first known use of arterial was in the 15th century

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More Definitions for arterial


ar·​te·​ri·​al | \ är-ˈtir-ē-əl How to pronounce arterial (audio) \

Medical Definition of arterial

1 : of or relating to an artery
2 : relating to or being the bright red blood present in most arteries that has been oxygenated in lungs or gills — compare venous sense 3

Other Words from arterial

arterially \ -​ē-​ə-​lē How to pronounce arterially (audio) \ adverb

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More from Merriam-Webster on arterial

Rhyming Dictionary: Words that rhyme with arterial

Thesaurus: All synonyms and antonyms for arterial

Spanish Central: Translation of arterial

Nglish: Translation of arterial for Spanish Speakers

Britannica English: Translation of arterial for Arabic Speakers

Comments on arterial

What made you want to look up arterial? Please tell us where you read or heard it (including the quote, if possible).


a sum of money that is sent as a payment

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