bioscience, life science - any of the branches of natural science dealing with the structure and behavior of living organisms

medical specialty, medicine - the branches of medical science that deal with nonsurgical techniques

pathology - the branch of medical science that studies the causes and nature and effects of diseases

radiology - the branch of medical science dealing with the medical use of X-rays or other penetrating radiation

serology - the branch of medical science that deals with serums; especially with blood serums and disease

surgery - the branch of medical science that treats disease or injury by operative procedures; "he is professor of surgery at the Harvard Medical School"

orthopaedics, orthopedics - the branch of medical science concerned with disorders or deformities of the spine and joints

neurology - the branch of medical science that deals with the nervous system and its disorders