quarter circle
noun
The shape of a quarter of a circle; an arc describing a quarter of the circumference of a circle.
Origin
Late 16th century; earliest use found in John Davis (c1550–1605), explorer.
| 单词 | quarter circle |
| 释义 | quarter circlenoun The shape of a quarter of a circle; an arc describing a quarter of the circumference of a circle. Origin |
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