noun
circumference
sur-KUHMF-ruhns
noun
1
The distance all the way around the edge of a circle or round object.
"The circumference of the wheel is just over two metres."
"Measure the circumference of the trunk to estimate the tree's age."
How to Use Circumference
Learner’s notesIn plain EnglishThe measurement of the outer boundary of something round.
Common pairings
circumference of a circle
measure the circumference
Word Forms
circumferenced past tense, circumferences plural, circumferences singular
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The _____ of the wheel is just over two metres.
Etymology
From Latin circumferentia, from circum ("around") plus ferre ("to carry").