The term MED SCHOOL SUBJ. is referring to a subject studied in medical school, and the solution to this crossword is ANAT, which stands for anatomy. Anatomy is the scientific study of the structure and organization of living things. It is a branch of biology that focuses on the physical structure of organisms and their parts. Anatomy is an important subject for medical students to learn, as it provides them with a better understanding of the human body and how it works.