1. relating to, located on, or moving around the circumference or outer boundary of something
2. of or relating to a road or route that goes around the outside of a city or area

Examples

• The circumferential highway allows drivers to avoid downtown traffic.
• A circumferential nerve pathway carries signals around the spinal cord.
• The circumferential wall of the castle provided defense on all sides.
• Circumferential vision refers to what you can see in your peripheral view.
• The circumferential route takes longer but offers scenic views.
• Doctors measured the circumferential growth of the tumor.