Simple Definition of circumference
: the length of a line that goes around something or that makes a circle or other round shape
: the outer edge of a shape or area
Examples of circumference in a sentence
What is the circumference of the Earth at the equator?
The circle is 38 inches in circumference.
The fence marks the circumference of the field.
Origin and Etymology of circumference
Middle English, from Middle French & Latin; Middle French, from Latin circumferentia, from circumferre to carry around, from circum- + ferre to carry — more at bear
First Known Use: 14th century
CIRCUMFERENCE Defined for Kids
Definition of circumference for Students
1 : the line that goes around a circle
2 : a boundary line enclosing an area <A fence marks the circumference of the yard.>
3 : the distance around something
Learn More about circumference
Seen and Heard
What made you want to look up circumference? Please tell us where you read or heard it (including the quote, if possible).