Meaning of ELLIPSOID
Pronunciation:   i'lipsoyd



WordNet Dictionary 

 Definition:  
 [n] a surface whose plane sections are all ellipses or circles; "the Earth is an ellipsoid"
 [adj] in the form of an ellipse


ELLIPSOID is a 9 letter word that starts with E. 
 Synonyms:   ellipsoidal, noncircular, rounded, spheroidal 

 See Also:   plane figure, twodimensional figure  
Webster's 1913 Dictionary 

 Definition:  
\El*lip"soid\, n. [Ellipse + oid: cf. F. ellipsoide.]
(Geom.)
A solid, all plane sections of which are ellipses or circles.
See {Conoid}, n., 2
(a) .
Note: The ellipsoid has three principal plane sections, a, b,
and c, each at right angles to the other two, and each
dividing the solid into two equal and symmetrical
parts. The lines of meeting of these principal sections
are the axes, or principal diameters of the ellipsoid.
The point where the three planes meet is the center.
{Ellipsoid of revolution}, a spheroid; a solid figure
generated by the revolution of an ellipse about one of its
axes. It is called a prolate spheroid, or prolatum, when
the ellipse is revolved about the major axis, and an
oblate spheroid, or oblatum, when it is revolved about the
minor axis.
\El*lip"soid\, Ellipsoidal \El`lip*soi"dal\, a.
Pertaining to, or shaped like, an ellipsoid; as, ellipsoid or
ellipsoidal form.


Thesaurus Terms 

 Related Terms:   ball, balloon, bladder, blob, boll, bolus, bubble, bulb, bulbil, bulblet, geoid, globe, globelet, globoid, globule, glomerulus, gob, gobbet, knob, knot, oblate spheroid, orb, orbit, orblet, pellet, prolate spheroid, rondure, sphere, spheroid, spherule 
 

