Polymelia is a medical condition that refers to the presence of extra limbs in a person or animal. This rare condition can be caused by genetic factors or as a result of developmental abnormalities. While polymelia is the official term used in medical texts and diagnostic criteria, there are also other terms that can be used to describe this condition. Some of the synonyms for polymelia include supernumerary limbs, hyperdactyly, and polydactyly. Each of these terms refers to the presence of additional limbs beyond what is considered typical for human or animal anatomy. Despite the differences in terminology, all of these terms point to the same underlying medical condition - the presence of extra limbs.