curvature

名词 curvature:

1. (medicine) a curving or bending; often abnormal
2. the rate of change (at a point) of the angle between a curve and a tangent to the curve
3. the property possessed by the curving of a line or surface
   同义词：curve

1. A deformity of the back in human beings caused by an abnormal convex curvature of the upper spine.
   驼背人类背部的变形，由脊柱上部不正常的弯曲凸起造成

cur.va.ture

n.（名词）
The act of curving or the state of being curved.
弯曲：弯曲的动作或被弯曲的状态
Mathematics
【数学】
The ratio of the change in the angle of a tangent that moves over a given arc to the length of the arc.
曲率：切线通过给定弧线的角度变化与弧线长度之间的比率
The limit of this ratio as the length of the arc approaches zero.
曲率极限：当弧长趋向于零时该曲率的极限
The reciprocal of the radius of a circle.
曲率：一个圆半径的倒数
Medicine A curving or bending, especially an abnormal one:
【医学】 弯，曲：弯曲，尤指反常的弯曲：
例句：
curvature of the spine.
脊椎弯曲

来源：
Middle English
中古英语
from Latin curv3tôra
源自 拉丁语 curv3tôra
from curv3tus [past participle of] curv3re [to bend]
源自 curv3tus [] curv3re的过去分词 [弯曲]
from curvus [curved] * see sker- 2
源自 curvus [弯曲的] *参见 sker- 2