What is the meaning of the prefix "Peri-"?

The prefix "peri-" is derived from Greek and means "around" or "surrounding." In medical terminology, it is often used to describe structures or situations that are located around a particular organ or part of the body. For example, the term “pericardium” refers to the membrane surrounding the heart, while “peripheral” relates to the areas surrounding the center of the body or the main organs. This prefix is commonly encountered in various medical terms, signifying its importance in describing anatomical locations and relationships effectively. By understanding this prefix, one can better grasp the context of many medical terms related to anatomy and physiology.