Papain is a natural proteolytic enzyme (a type of protease) derived from the raw fruit of the papaya plant (Carica papaya). Named after the Latin term for papaya (Carica papaya), this enzyme has been used for centuries in traditional medicine and cooking, particularly in Central and South America, for its digestive and healing properties. Today, it is widely utilized in food processing, cosmetics, pharmaceuticals, and industrial applications due to its ability to break down protein chains (proteolysis).