bn:00030406n
Noun Concept
Categories: Plane curves, Conic sections, Articles with short description, Algebraic curves, Elementary shapes
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ellipse  oval  ovoid  Auxiliary circle  Circumference of an ellipse
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A closed plane curve resulting from the intersection of a circular cone and a plane cutting completely through it WordNet 3.0
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A closed plane curve resulting from the intersection of a circular cone and a plane cutting completely through it WordNet 3.0 & WordNet 2020
An oval is a closed curve in a plane which resembles the outline of an egg. Wikipedia
In mathematics, an ellipse is a plane curve surrounding two focal points, such that for all points on the curve, the sum of the two distances to the focal points is a constant. Wikipedia
Type of curve on a plane Wikidata
Any curve resembling an egg or an ellipse. OmegaWiki
A curved planar figure, the locus of all points which have the same total distance from two fixed points called the foci. OmegaWiki
A closed curve, the locus of a point such that the sum of the distances from that point to two other fixed points (called the foci of the ellipse) is constant; equivalently, the conic section that is the intersection of a cone with a plane that does not intersect the base of the cone. Wiktionary
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The sums of the distances from the foci to any point on an ellipse is constant WordNet 3.0
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WordNet 3.0 & WordNet 2020
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OmegaWiki
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