Assertion: ellipsoid | /r/HasProperty | symmetrical
Facets:
value: about each of three perpendicular axes
type: OTHER
Source sentences:
text: An ellipsoid is symmetrical about three mutually perpendicular axes that intersect at the centre.
text: Ellipsoid is a three-dimensional geometric surface, which is symmetrical about each of three perpendicular axes, whose plane sections normal to one axis are circles and all the other plane sections are ellipses.