bul: конично сечение

Information
has URI	http://lexvo.org/id/term/bul/%D0%BA%D0%BE%D0%BD%D0%B8%D1%87%D0%BD%D0%BE%20%D1%81%D0%B5%D1%87%D0%B5%D0%BD%D0%B8%D0%B5

Meaning
means	(noun) (geometry) a curve generated by the intersection of a plane and a circular cone conic, conic section