ellipse
Noun

A closed plane curve resulting from the intersection of a circular cone and a plane cutting completely through it (synset 113900945)
"the sums of the distances from the foci to any point on an ellipse is constant"hypernym: conic, conic section  (geometry) a curve generated by the intersection of a plane and a circular conehyponym: circle  ellipse in which the two axes are of equal length; a plane curve generated by one point moving at a constant distance from a fixed pointsynonym: oval
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