ELLIPTICITY


Meaning of ELLIPTICITY in English

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

Webster's New International English Dictionary.      Новый международный словарь английского языка Webster.