What is Medical Terminology? Medical terminology is a type of language that describes words, diseases and medical-related terms used in the healthcare industry. It includes a listing of drug names, symptoms and medications as well as the various parts of the anatomy. Medical terminology is also used extensively in the medical billing and claims process. How Would a Chart About Medical Terminology Benefit Anyone? Knowledge of medical terminology is beneficial to patients because it can give them insight into their health and well-being. It can also help those working in medical professions perform more efficiently. It's also a course required in almost any healthcare program.