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The equation for an ellipsoid is
x2/a2 + y2/b2 + z2/c2 = 1.


A geometric surface, all of whose plane sections are either ellipses or circles.

el·lip′soid′, el·lip′soi′dal (ĭ-lĭp′soid′l, ĕl′ĭp-, ē′lĭp-) adj.


(ɪ lɪpˈsɔɪd l, ˌɛl ɪp-, ˌi lɪp-)

pertaining to or having the form of an ellipsoid.
ThesaurusAntonymsRelated WordsSynonymsLegend:
Adj.1.ellipsoidal - having the nature or shape of an ellipsoid
rounded - curving and somewhat round in shape rather than jagged; "low rounded hills"; "rounded shoulders"
References in periodicals archive ?
Tenders invited for Ss-304 pipe & ss-304 wnrf flange & ss-304 ellipsoidal
A closely associated problem asks for an ellipsoidal cylinder containing a set of points whose cross section in a certain coordinate subspace has minimum area.
The second method used to help visualize the distributions and incorporate the effect of other factors was to fit an ellipsoidal distribution to the data, following the approach of Fujishiro and Takahashi (2015).
As the type of central field of force in the hydrogen atom is coulombic, the variables in the partial-differential equation are separable in not only spherical polar and paraboloidal coordinates but also ellipsoidal and spheroconical coordinates.
ELLIPSOIDAL JOINT This joint is an oval-shaped joint, allowing all types of movements except pivotal.
In GPS technique, point positions are defined as geocentric (x,y,z) or as geodetic latitude ([phi]), longitude ([lambda]) and ellipsoidal heights (h) (Seeber, 2003; Daho et al.
Furthermore, in [7-9], an ellipsoidal bounded disturbance set is considered in the main optimization problem.
A 3D scattering ellipsoidal model is presented in [12] for deriving direction of arrival (DoA) and direction of departure (DoD).
2 provides a graphical representation of an ellipsoidal curve with an event point (earth).
Even small telescopes show Jupiter's slightly ellipsoidal shape (caused by its fast rotation), one or two of its pale tan cloud belts, and its four big Galilean moons.
Cells are spherical, ellipsoidal, sometimes bent, pale to bright blue-green or yellow-green, the plankticspeices have aerotopes.