ellipse
/ɪˈlɪps
/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 which does not intersect the base.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).
Rhymes
- negative catalysis
- negative catalyst
- negative confession
- negative crystal
- negative definite
- negative energy
- negative equity
- negative eugenics
- negative evidence
- negative eyepiece
- negative feedback
- negative flag
- negative g
- negative gearing
- negative geotropism
- negative glow
- negative-going
- negative growth
- negative income tax
- negative instance
- negatively
- negativeness
- negative oath
- negative option
- negative pedal