Meaning of ELLIPSE in English

ELLIPSE

noun Etymology: Greek elleipsis Date: circa 1753 1. oval , a closed plane curve generated by a point moving in such a way that the sums of its distances from two fixed points is a constant ; a plane section of a right circular cone that is a closed curve, ellipsis

Merriam Webster. Explanatory English dictionary Merriam Webster.      Толковый словарь английского языка Мерриам-Уэбстер.