phlebothrombosis /fleb′ōthrombō″sis/ [Gk, phleps + thrombos, lump, osis, condition] , an abnormal condition in which a clot forms within a vein. It is usually caused by hemostasis, hypercoagulability, or occlusion. In contrast to that in thrombophlebitis, the wall of the vein is not inflamed. Also called venous thrombosis. Compare thrombophlebitis.
