subclavian /səbˈkleɪ.vi.ən/adjective 1noun 1forms 1 adjective1 •Relating to or denoting an artery or vein which serves the neck and arm on the left or right side of the body.There I was struck on the shoulder by a Jezail bullet, which shattered the bone and grazed the subclavian artery. — 1887 noun1 •A subclavian part (such as an artery, vein, or nerve).The carotids were in their natural state; the arteria innominata and the subclavian were twice their natural diameter: their smaller branches were proportionally dilated and bent zigzag. — 1833 formssubclavians
