noun
periphery
puh-RIF-uh-ree/pəˈrɪfəri/
The outer edge or less central part of something.
A blue rim marks the plate’s periphery.

Etymology
The pieces describe “carrying around,” the image behind the Greek word for a circumference. From a line enclosing a shape, periphery broadened to mean an outer edge or less central area.
In context
think about a metropolitan area. So you have the suburbs and the periphery, you have a center, like a financial district
More examples
- She remained at the periphery of the discussion.
- Movement caught the periphery of his vision.
- The reform began at the organization’s periphery.
Forms
periphery · peripheries