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WordReference Random House Learner's Dictionary of American English © 2024ar•te•ri•al /ɑrˈtɪriəl/USA pronunciation adj. [usually: before a noun]- of or having to do with an artery:arterial blood flow.
being a main or most important route or connection to a place:an arterial highway. WordReference Random House Unabridged Dictionary of American English © 2024ar•te•ri•al (är tēr′ē əl),USA pronunciation adj. - Physiologypertaining 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.
- Anatomyof, pertaining 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.
n. - Transporta main route, channel, or other course of flow or access:funds to resurface the main arterials of the city.
- Medieval Latin artēriālis. See artery, -al1
- Middle French)
- late Middle English (1375–1425
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