What does the prefix 'Peri-' signify?

The prefix 'peri-' originates from Greek, where it means "around" or "surrounding." It is commonly used in various terms to indicate something that encircles or is in the vicinity of something else. For instance, in words like "perimeter," it refers to the boundary that surrounds a shape, and in "perinatal," it relates to the time surrounding birth. This clear association with the concept of surrounding or encircling makes 'peri-' a distinct and recognizable prefix in the English language and medical terminology. Understanding this can enhance comprehension of terms that use this prefix in your work or studies.