As nouns the difference between circumference and semicircumference
is that circumference
is (geometry) the line that bounds a circle or other two-dimensional figure while semicircumference
is one half of the circumference of a circle.
As a verb circumference
is (obsolete|transitive) to include in a circular space; to bound.
Other Comparisons: What's the difference?
(geometry) The line that bounds a circle or other two-dimensional figure
(geometry) The length of such a line
(obsolete) The surface of a round or spherical object
* (distance measured around any object ): girth
* (distance measured around a race track ): lap
(obsolete) To include in a circular space; to bound.
- (Sir Thomas Browne)
One half of the circumference of a circle