The term 'Iron Source' is composed of three words: LIVER (5 letters), ORE (3 letters), and Redmeat (7 letters). LIVER is an organ found in vertebrates that helps to filter toxins from the blood, while ORE is a rock or mineral from which a valuable metal or valuable mineral can be extracted. Redmeat is a type of meat that comes from mammals, such as beef, lamb, and pork. Together, these three words form the term Iron Source, which refers to the natural sources of iron found in the environment.