The term 'OSTEAL' is a six-letter word that refers to bone. It is derived from the Greek word 'osteon', which means bone. Osteology is the scientific study of bones, and osteopathy is a form of alternative medicine that focuses on the musculoskeletal system. Osteogenesis is the process of bone formation, and osteoporosis is a condition in which bones become weak and brittle due to a lack of calcium. Osteoarthritis is a degenerative joint disease that affects the cartilage and bones of the joints.