"Circumference" • Chinese-English Dictionary
| 圆周 | yuán zhōu | circumference / circle |   |
| 周径 | zhōu jìng | girth / circumference | |
| 圆周率 | yuán zhōu lu:4 | (math.) the ratio of the circumference of a circle to its diameter (π) | |
| 周三径一 | zhōu sān jìng yī | circumference of a circle is proverbially three times its radius | |
| 週長 | zhōu cháng | variant of 周長|周长, perimeter / circumference | |
| 周三径一 | zhōu sān - jìng yī | when the circumference is three, the diameter is (approximately) one | |
