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ellipsoid Line breaks: el¦lips|oid
Pronunciation: /ɪˈlɪpsɔɪd/

Definition of ellipsoid in English:


A three-dimensional figure symmetrical about each of three perpendicular axes, whose plane sections normal to one axis are circles and all the other plane sections are ellipses.
Example sentences
  • It was found that the maximum total force is experienced when the major axis of the ellipsoid is perpendicular to the flow and the minimum when it is aligned.
  • He gave a proof of a result due to Maclaurin, that the attractions at an external point lying on the principal axis of two confocal ellipsoids was proportional to their masses.
  • The shape of the red cell during the tank-tread motion resembles a triaxial ellipsoid with the longest axis almost parallel to the direction of the undisturbed flow.


Pronunciation: /ɛlɪpˈsɔɪd(ə)l/
Example sentences
  • The particles may have any shape or size, but they are generally spherical, ellipsoidal, polyhedral, or irregular in shape.
  • The oil-bearing fluid inclusion morphologies include spherical, oval, ellipsoidal, lath-like and irregular shapes, although there is no obvious relationship between inclusion morphology and quartz cement history.
  • A primary concave parabolic mirror converges the light to one focus of a concave ellipsoidal mirror.
Definition of ellipsoid in:
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