The centromere is represented as a solid ellipsoid .
Figure 4 shows the first Fresnel zone is an ellipsoid surrounding the straight line between the two antennas.
Its component boulders, however, have been stretched into an ellipsoid with its longest axis pointing at Jupiter.
Thus, each cluster is represented by an ellipsoid using the new axes as the ellipsoidal axes, and the variance along these axes (square-roots of the eigenvalues) as the axis lengths.
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.
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.
In this case, the toroidal surface has become an off-axis segment of an ellipsoid .
The strain ellipsoid is oblate, showing the Z axis to be perpendicular to the cleavage.
On the planetary scale the geoid is approximated by an ellipsoid of revolution about its minor axis with a degree of flattening of around 1 part in 300 caused primarily by the Earth's rotation.
Simple geometrical arrangements such as an ellipsoid or a cylinder are often used to gauge the shape of particles such as micelles and proteins.