Find the word definition

WordNet
internal jugular vein

n. a continuation of the sigmoid sinus of the dura mater; joins the subclavian vein to form the brachiocephalic vein

Wikipedia
Internal jugular vein

The internal jugular vein is a paired jugular vein that collects blood from the brain and the superficial parts of the face and neck. The vein runs in the carotid sheath with the common carotid artery and vagus nerve.