# ellipsoid

[ ih-lip-soid ]

/ ɪˈlɪp sɔɪd /

### noun

Geometry. a solid figure all plane sections of which are ellipses or circles. Typical equation: (x2/a2) + (y2/b2) + (z2/c2) = 1.

### adjective

## Words nearby ellipsoid

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## Examples from the Web for ellipsoid

## British Dictionary definitions for ellipsoid

ellipsoid

/ (ɪˈlɪpsɔɪd) /

### noun

- a geometric surface, symmetrical about the three coordinate axes, whose plane sections are ellipses or circles. Standard equation: x ²/ a ² + y ²/ b ² + z ²/ c ² = 1, where ± a, ± b, ± c are the intercepts on the x-, y-, and z- axes
- a solid having this shapethe earth is an ellipsoid

## Derived forms of ellipsoid

ellipsoidal (ɪlɪpˈsɔɪdəl, ˌɛl-), adjectiveCollins English Dictionary - Complete & Unabridged 2012 Digital Edition
© William Collins Sons & Co. Ltd. 1979, 1986 © HarperCollins
Publishers 1998, 2000, 2003, 2005, 2006, 2007, 2009, 2012

## Scientific definitions for ellipsoid

ellipsoid

[ ĭ-lĭp′soid′ ]

A three-dimensional geometric figure resembling a flattened sphere. Any cross section of an ellipsoid is an ellipse or circle. An ellipsoid is generated by rotating an ellipse around one of its axes.

The American Heritage® Science Dictionary
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