ellipsoid


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Related to ellipsoid: geoid, ellipsoid joint

el·lip·soid

(ē-lip'soyd),
1. A spheric or spindle-shaped condensation of phagocytic macrophages in a reticular stroma investing the wall of the splenic arterial capillaries shortly before they release their blood in the cords of red pulp.
2. The outer end of the inner segment of the retinal rods and cones.
3. Having the shape of an ellipse or oval.
[G. ellips, oval, + eidos, form]

Schweigger-Seidel,

Franz, German physiologist, 1834-1871.
sheath of Schweigger-Seidel - (1) a spherical or spindle-shaped condensation of phagocytic macrophages in a reticular stroma investing the wall of the splenic arterial capillaries; - (2) the outer end of the inner segment of the retinal rods and cones. Synonym(s): ellipsoid

ellipsoid

1. The refractile outer portion of the inner member of a rod or cone cell. It is located between the myoid and the outer member of the cell, and contains mitochondria. The myoid is in contact with the external limiting membrane of the retina while the outer member is next to the pigment epithelium. 2. Surface of revolution generated by rotating an ellipse about a major or minor axis.

el·lip·soid

, ellipsoidal (ē-lip'soyd, -al)
Spheric or spindle-shaped condensation of phagocytic macrophages in a reticular stroma investing wall of splenic arterial capillaries shortly before they release their blood in red pulp cords.
[G. ellips, oval, + eidos, form]
References in periodicals archive ?
The solution to differential equation (9) is an ellipsoid similar to the one given in (6), and its extended form similar to (7) is given in (10) as:
The oblate ellipsoid micelles half axes were found to increase with increasing NaCl salt addition.
Much research work has been done to approximate the Schur stability domain by boxes [3,4], ellipsoids [5,6], polytopes [7-9] or other convex sets [10,11].
Aspheric designs for myopes utilise convex oblate ellipsoid or convex polynomial surfaces in order to produce thinner and flatter point focal lenses.
With the surfactant lowering the drop's surface tension, ellipsoid particles did not get stuck at the interface and flowed freely to the edge.
We repeat these formulae with the intent of providing a set of orbital parameters particular to any satellite and any ellipsoid which permit rapid forward and inverse projection translations.
Color difference research on acceptable textile samples produced ellipsoids when plotted in CIELAB color space rather than the spheres that would be expected in a uniform color space.
Leaves numerous, ascending, coriaceous, subglabrous, yellow-green with irregular red spots, forming a large ellipsoid pseudobulb; sheaths ca.
In that way, the complicated measurement model linked to the variable curvature of earth's ellipsoid surface in 3D used for the determination of object geographic placement using the polar method is avoided.
Realtime tracking of aerial targets is achieved through ellipsoid and Doppler measurements.
From its light curve Haumea is assumed not to be round, but an ellipsoid.
The mathematical model of the ellipsoid worm gears consists in a set of equations of the flanks surfaces.