ELLIPSOID

Ellipsoid

An ellipsoid is a closed quadric surface that is a three-dimensional analogue of an ellipse. The standard equation of an ellipsoid centered at the origin of a Cartesian coordinate system and aligned with the axes is

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ellipsoid

Noun

  1. a surface, all of whose cross sections are elliptic or circular (includes the sphere)
  2. Such a surface used as a model of the shape of the earth.
    Here the geoid is thirty meters below the ellipsoid.

Adjective

  1. Shaped like an ellipse; elliptical.
  2. Of or pertaining to an ellipse.
  3. Having the tridimensional shape of an ellipse rotated on its long axis.


The above text is a snippet from Wiktionary: ellipsoid
and as such is available under the Creative Commons Attribution/Share-Alike License.

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