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Elliptical galaxies have an oval shape. An example is the Messier 87.
All the points of a circles circumferance are equidistant from the centre. If you make a shape with 2 focus points,Foci, then you will have an Oval or Elipse. Basically it is egg shaped. Some Cricket grounds are called the oval, Kennington in London & Kensingon in the West Indies, for example. Rugby balls are oval, or ovoid in shape. Most sports stadiums are 'the oval' because they are oval in shape.
Ellipses are a scientific word for the shape of an oval. for example the planets orbits are ellipses.
An ellipse is the proper name for an oval shape, however, a circle is a closed curved shape similar to an oval shape.
There are several different "oval" shapes. A running track, which comprises two semicircles separated by two straight stretches is an oval. So is the cross section of an egg - a shape in which the cross-sectional width does not change uniformly. Another example is the ellipse. Because all these shapes are called ovals, there is no single name.