An oblate spheroid is a rotationally symmetric ellipsoid having a polar axis shorter than the diameter of the equatorial circle whose plane bisects it. Oblate spheroids are contracted along a line, whereas prolate spheroids are elongated. It can be formed by rotating an ellipse about its minor axis, forming an equator with the end points of the ma...
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http://en.wikipedia.org/wiki/Oblate_spheroid
(from the article `ellipsoid`) ...is an ellipsoid of revolution, or spheroid ( the figure), the figure formed by revolving an ellipse about one of its axes. If and are greater ... ...Earth moves around the Sun and rotates about its own axis—and with the advance in mechanical knowledge due chiefly to Newton and Huygens, it ... ...
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http://www.britannica.com/eb/a-z/o/2
An ellipsoid produced by rotating an ellipse through 360° about its minor axis (i.e. its shorter axis). Compare with prolate spheroid.
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http://www.daviddarling.info/encyclopedia/O/oblate_spheroid.html
An ellipsoid produced by rotating an ellipse through 360° about its minor axis. See also: Ellipse.
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A planet that is not perfectly round because it is wider in the middle and shorter from top to bottom.
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No exact match found.
