資料來源 : pyDict

圓,圈狀,環狀

資料來源 : Webster's Revised Unabridged Dictionary (1913)

Circularity \Cir`cu*lar"i*ty\, n. [LL. circularitas.]
   The quality or state of being circular; a circular form.

資料來源 : WordNet®

circularity
     n : the roundness of a 2-dimensional figure [syn: {disk shape}]