Definition: Anatomism refers to the study of living organisms, specifically in terms of their structure, anatomy, physiology, and behavior. It's a fundamental field that explores how different parts of an organism function together as one unit. Anatomists investigate how cells work with each other, how they grow and develop, and how organs and tissues communicate and coordinate. They study how living organisms adapt to changing environments and are interested in understanding the mechanisms by which pathogens and other threats can invade and cause disease.