1520s, from sphere + -ical. Related: Spherically. A spherical number (1640s) is one whose powers always terminate in the same digit as the number itself (5, 6, and 10 are the only ones).
权威例句
1. Aggregates are compact and close to spherical in shape.
聚集体结构紧密并且形状接近于球形.
2. We carry out a transformation to spherical polar coordinates.
我们变换成球极坐标.
3. Both spherical and regular crystalline forms are relatively rare.
球形的和规则的球晶形成相对来说很稀少.
4. We begin by considering a spherical element in an unstressed body.
现在从考察一无应力物体中的圆球形单元体开始讨论.
5. A spherical or oval nucleus is near the centre of the cell.