Definition of ellipse in English:

ellipse

Syllabification: el·lipse
Pronunciation: /iˈlips
 
/

noun

  • A regular oval shape, traced by a point moving in a plane so that the sum of its distances from two other points (the foci) is constant, or resulting when a cone is cut by an oblique plane that does not intersect the base.
    More example sentences
    • For example he shows how to deform a circle into an ellipse and proves other results on deforming conic sections.
    • There are three non-degenerate conics: the ellipse, the parabola, and the hyperbola.
    • The first law states that the orbit of a satellite is an ellipse, and that one of the foci of the ellipse must be located at the centre of the Earth.

Origin

late 17th century: via French from Latin ellipsis (see ellipsis).

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