| 释义 |
el·lip·tic·i·ty
\ə̇ˌlipˈtisəd.ē, eˌ-, ēˌ-, ˌe(ˌ)-\ noun
(-es)
1. : deviation of an ellipse or a spheroid from the form of a circle or a sphere
2. : the difference between the equatorial and polar semidiameters, divided by the equatorial or occasionally by the polar — used especially in ref. to the figure of the earth
< the ellipticity of the earth is approximately 1/300 > |