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circumpolar star
circumscribe
circumscription
circumsolar
circumspect
circumstance
circumstanced
circumstantial
circumstantiate
circumstellar
circumterrestrial
circumvallate
circumvent
circumvolution
circus
circus catch
Circus Maximus
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circumference

cir·cum·fer·ence [ sər kúmfərənss, sər kúmfrənss ] (plural cir·cum·fer·enc·es)


noun 
Definition:
 
1. distance around circle: the distance around the edge of a circle

2. distance around something: the distance around the edge of an object or a place that is roughly circular

3. edge of something: the edge of a round object or area

[14th century. < Latin circumferentia< circumferent-, present participle of circumferre "carry around" < ferre "carry"]

cir·cum·fer·en·tial [ sər kùmfə rénsh'l ] adjective
cir·cum·fer·en·tial·ly [ sər kùmfə rénshəlee ] adverb
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