Exact Match:
- ellipse
- a closed plane curve resulting from the intersection of a circular cone and a plane cutting completely through it; "the sums of the distances from the foci to any point on an ellipse is constant"
Synonyms:
- arc,
- bow,
- catacaustic,
- catenary,
- caustic,
- circle,
- conchoid,
- crook,
- curl,
- curve,
- diacaustic,
- festoon,
- hook,
- hyperbola,
- lituus,
- oval,
- ovoid,
- ovule,
- parabola,
- sinus,
- tracery