靜脈曲張
Varicosity \Var`i*cos"i*ty\, n. 1. The quality or state of being varicose. 2. An enlargement or swelling in a vessel, fiber, or the like; a varix; as, the varicosities of nerve fibers.
varicosity n : varix or varicose condition in which a vein is swollen and tortuous