subclavian artery

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A part of a major artery of the upper extremities or forelimbs that passes beneath the clavicle and is continuous with the axillary artery.

An artery originating on the left from the aortic arch and on the right from the brachiocephalic artery with branches to the vertebral artery, the thyrocervical trunk, the internal thoracic artery, the costocervical trunk, and the descending scapular artery, and directly continuous with the axillary artery.

The noun has one meaning:

Meaning #1: either of two arteries that supply blood to the neck and arms
  Synonym: arteria subclavia