subclavian artery noun1 •A paired artery of the upper thorax which passes beneath the clavicle and mainly supplies the upper limb, and continues as the axillary artery at the lateral border of the first rib.Glass from the shattered side windows had lodged itself quite deep between Lia’s shoulder blade and collar bone, just missing the subclavian artery. — 2022 formssubclavian arteries
