1. a three-dimensional geometric shape that resembles a stretched or flattened sphere
Usage: mathematics; geometry

1. having the shape of an ellipsoid
Usage: technical

Examples

• The Earth is actually an ellipsoid, slightly flattened at the poles.
• The mathematician drew an ellipsoid to demonstrate the concept.
• Many planets have an ellipsoid shape due to their rotation.
• The sculpture had a smooth, ellipsoid form.
• Engineers use ellipsoid calculations in satellite design.
• The balloon inflated into an ellipsoid shape.