Wiktionary
varicose vein
n. 1 (context pathology English) An abnormally swollen or dilated vein 2 (context in the plural English) The medical condition of having such veins, especially in the legs
WordNet
varicose vein
n. a vein that is permanently dilated; most common in the legs
Usage examples of "varicose vein".
Now, Paul noticed, his belly cast a shadow over his G-string, his left calf had developed a varicose vein, and war paint failed to hide the gray bags under his eyes.