Which term refers to the study of a subject in medical terminology?

The term that refers to the study of a subject in medical terminology is denoted by the suffix "-logy." This suffix is derived from the Greek word "logia," which means "the study of" or "discourse." It is commonly used in various scientific and medical disciplines to indicate a systematic study or branch of knowledge. For example, "biology" is the study of life, and "psychology" is the study of the mind.

The other terms presented serve different purposes in medical terminology. The suffix "-tomy" refers to the act of making an incision or a surgical cutting, as seen in words like "anatomy," which relates to cutting up the body for study. The suffix "-osis" indicates a condition, often a disease or abnormal state, and is commonly used in terms that describe pathological states. Lastly, "-emia" pertains to blood conditions, indicating the state of the blood, as seen in terms like "anemia," which refers to a deficiency of red cells or hemoglobin in the blood. Understanding these suffixes enriches one’s grasp of medical vocabulary and its applications.