0 related to or flowing in an artery (= a tube carrying blood from the heart to other parts of the body): --
1 An arterial route is an important one that a lot of traffic moves along. : --
arterial roads
This is one of the two main arterial routes into the city centre.
76 percent of arterial streets are congested in the San Francisco-Oakland area.
Too many of the state's highways and major arterial roads are in poor condition.
The drug is used to treat pulmonary arterial hypertension.
He had a significant arterial blockage.