vena posterior ventriculi sinistri ve·na·pos·teriorventriculisinistri uncommon noun 1. arises near the apex of the heart and empties into the coronary sinus Synonymsposterior vein of the left ventriclevena posterior ventriculi sinistri Related words Broader terms vein WordNet 2.1 (Princeton University). WordNet 2.1 Copyright Princeton University. All rights reserved.