noun
innominate artery; brachiocephalic artery
Medical term for the artery that branches from the aortic arch and divides into the right common carotid and right subclavian arteries.
無名動脈は大動脈弓から分岐する。
The innominate artery branches from the aortic arch.
From 無名 (むめい, 'unnamed') + 動脈 (どうみゃく, 'artery'), a calque of the English 'innominate artery'.