Lues is a term that is commonly used in the field of medicine. It refers to a type of infectious disease that is caused by the Treponema pallidum bacteria. Lues is also known as syphilis, a sexually transmitted infection that can have serious health consequences if left untreated. There are several synonyms for this term, including the pox, the great pox, the French disease, and Cupid's disease. Some of these terms are now considered outdated, but they are still used in historical and medical contexts. It is important to be aware of these synonyms when researching the history or treatment of syphilis.