What is peri meaning?

Peri is a prefix that is commonly used in English language. It means "around" or "surrounding". The term peri is derived from the Greek word "peri-" which means "around" or "near". It is commonly used in medical terminology, for example, pericardial means around the heart, periosteum means around the bone, and peritoneum means around the abdomen. The term peri is also used in other areas, such as peri-urban (surrounding urban areas), peridots (a type of gemstone), and periscopes (optical devices for viewing around obstacles).