What does the prefix "poli-" signify?

The prefix "poli-" signifies "grey." This term is commonly associated with the word "polio," which refers to poliomyelitis, an infectious disease that can cause paralysis. The use of "poli-" comes from the Greek word "polios," meaning "grey," which has led to its application in various medical and scientific contexts. Understanding the meanings of prefixes like "poli-" can help in deciphering complex medical terminology and enhance comprehension in the field of medicine.