What is the definition of the prefix "poly-" in a medical context?

The prefix "poly-" is derived from the Greek word for "many." In a medical context, it is often used to describe conditions or situations involving multiple elements or a large number of something. For example, in terms like "polyuria," which refers to the production of an abnormally large volume of urine, or "polyarthritis," indicating inflammation in multiple joints, the prefix clearly conveys the concept of multiplicity. Understanding this prefix is essential for interpreting various medical terms correctly, as it provides important information about the quantity or extent of the condition described.