Meaning of ARTERIAL in English

ARTERIAL

ar ‧ ter ‧ i ‧ al /ɑːˈtɪəriəl $ ɑːrˈtɪr-/ BrE AmE adjective

1 . involving the arteries:

arterial blood

2 . [only before noun] an arterial road is one of the main roads in a city, country etc

Longman Dictionary of Contemporary English.      Longman - Словарь современного английского языка.