IPA: /ɑːˈtɪəriəl/
KK: /ɑrˈtɪr i əl/
Relating to the main pathways or channels in a system, especially in terms of roads or blood vessels that carry oxygenated blood.
The city is planning to expand its arterial roads to reduce traffic congestion.
A main road or street that allows for continuous traffic flow, often connecting different areas or regions.
The new arterial road will help reduce traffic congestion in the city.
Arterial → It is formed from "arteria" (from Latin, meaning artery) and the suffix "-al" (meaning pertaining to). The word "arterial" refers to something that pertains to the arteries.
Think of the word 'artery' which refers to blood vessels, and remember that 'arterial' means related to those blood vessels.