I. är-ˈtir-ē-əl adjective
Date: 15th century
1.
a. : 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
• ar·te·ri·al·ly -ē-ə-lē adverb
II. noun
Date: 1932
: a through street or highway