Acetabular is a medical term that refers to the cup-shaped portion of the pelvis that connects to the femur bone to form the hip joint. There are several synonyms for this term, including hip socket, cotyloid cavity, cup-shaped depression, and femoral head socket. These synonyms describe the same anatomical structure in different ways. Understanding these synonyms is essential for medical professionals who diagnose and treat hip joint injuries and conditions. By using appropriate medical terminology, healthcare providers can communicate effectively with patients and ensure accurate diagnoses and treatment plans.