circumference
/sərˈkʌmfərəns/
noun
- The distance around the edge of a circle or round object.
- The tree trunk had a circumference of over ten feet.
- To find the circumference of a circle, multiply the diameter by pi.
- She measured the circumference of the basketball to check its size.
- The outer boundary or perimeter of a rounded shape or area.
- They walked the circumference of the lake in about an hour.
- The circumference of the crater was marked by a ridge of rock.
- The fence ran along the circumference of the entire park.