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

Examples of arterial in a Sentence

Noun one of the main arterials connecting the airport with the city
Recent Examples on the Web: Adjective Placing arterial lines to monitor blood pressure is also challenging. Emily Bamforth, cleveland, "A day on the coronavirus floor with MetroHealth doctors and nurses (photos)," 28 Apr. 2020 Traditional automated blood pressure cuffs inflate to restrict blood flow in your arm, and, as the cuff releases the pressure, arterial pulsations are measured with a pressure sensor. Ron Amadeo, Ars Technica, "Samsung’s Galaxy Watch Active2 can monitor your blood pressure," 21 Apr. 2020 The agency used travel time and speed data from the analytics company INRIX to measure congestion on all major freeways and most of the arterial streets in Maricopa County before and after the COVID-19 shutdown. Erin Stone, azcentral, "Air pollution levels ease as people stay home, but heat could reverse the trend," 13 Apr. 2020 Those white stripes were showing up Friday on arterial thoroughfares as well as residential streets citywide in anticipation of more snow on Sunday. Joe Taschler, Milwaukee Journal Sentinel, "What are those lines on the road? It's salt brine and Milwaukee has taken it citywide in an effort to keep traffic moving," 7 Feb. 2020 But hose require big IVs and arterial catheters to use, so there’s some danger in that. Wendy Grossman Kantor,, "Why Ventilators Are so Important in the Fight Against Coronavirus," 1 Apr. 2020 Higher adherence to the diet also reduced the rate of bone loss in people with osteoporosis and improved blood pressure and arterial stiffness. Sandee Lamotte, CNN, "Mediterranean diet scores another win for longevity by improving microbiome," 17 Feb. 2020 Incidentally, scans also show the arterial plaque that probably killed her. Brian T. Allen, National Review, "In Montreal, Egyptian Mummies, in 3-D, Have Secrets to Share," 18 Jan. 2020 The camera found fewer than six violations per month on a busy California divided arterial roadway — only one every five days, a 98% reduction. Kevin Flynn, The Denver Post, "Kevin Flynn: Fines don’t stop red-light runners, but fixing engineering flaws does," 31 Dec. 2019 Recent Examples on the Web: Noun The bulk of pedestrian deaths nationally, 59%, occurred on major arterials — in the Portland region, that’s streets like 82nd Avenue, Tualatin Valley Highway or McLoughlin Boulevard. oregonlive, "Pedestrian traffic deaths spike to highest level since 1988 last year, report finds," 27 Feb. 2020 The proposed speed limits are: 40 mph on arterials where there are low bicycle and pedestrian activity. Paulina Pineda, azcentral, "Tempe may lower its speed limits. The idea is to keep you safer," 20 Nov. 2019 NETs can also worsen arterial plaques by promoting inflammation, cell biologist Venizelos Papayannopoulos of the Francis Crick Institute in London and colleagues found in 2015. Mitch Leslie, Science | AAAS, "New drugs aim to disarm the immune system’s ‘atomic bomb’ cells," 5 Mar. 2020 Outer Division, the wide arterial broadly from 82nd Avenue east to Gresham city limit, will see particular changes. oregonlive, "TriMet celebrates $175 million Division bus project’s beginning; leaders pledge ‘it will pay off’," 24 Jan. 2020 The video shows Kidd riding over one of the street’s speed bumps, infrastructure designed to slow down cars and to dissuade drivers who typically use neighborhood streets to get around busier arterials. Andrew Theen | The Oregonian/oregonlive, oregonlive, "Unipiper hit while riding – on 2 wheels - on SE Portland bike-friendly street," 13 Dec. 2019 The noninvasive procedure, called reactive hyperemia peripheral arterial tonometry, measures blood flow to the fingers during blood pressure inflation and release. Mayo Clinic News Network,, "Common early sign of cardiovascular disease also may indicate cancer risk, study finds," 1 Nov. 2019 Both the neighborhood roads and the major arterials are full of potholes, cracks and spot repairs for problems where a total resurfacing should have been applied., "Letter: Howard County has its priorities wrong on transportation upkeep, repair," 15 Oct. 2019 Currently, the average speed limit on arterial streets is between 35 to 45 mph. Paulina Pineda, azcentral, "Tempe may lower its speed limits. The idea is to keep you safer," 20 Nov. 2019

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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Time Traveler for arterial

Time Traveler

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

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Statistics for arterial

Last Updated

10 May 2020

Cite this Entry

“Arterial.” Dictionary, Merriam-Webster, Accessed 27 May. 2020.

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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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