Definition: Torticone is a term used in medical terminology that refers to a small, protruding bone located at the top of the skull. This bone often appears as a bulge or prominence on the surface of the head and can be caused by various conditions such as meningitis, skull fractures, or tumors. In some cases, torticollis (a condition where the bones in your neck are out of place), is also known as a torticone deformity.