What does the suffix '-ac' refer to in medical terminology?

The suffix '-ac' in medical terminology is used to denote a relationship or connection to a particular subject, essentially meaning "pertaining to." For example, in terms like "cardiac," which relates to the heart, or "pelvic," which pertains to the pelvis, the suffix effectively links the root word to a specific area or function in the body. This usage is crucial in medical language, allowing healthcare professionals to precisely describe conditions, structures, or functions relevant to patient care. The prevalence of '-ac' in medical terminology helps refine communication within the healthcare field, ensuring clarity and accuracy when discussing various medical concepts.