parabola

n. 抛物线
【电】 抛物线

pa.rab.o.la

n.（名词）
A plane curve formed by the intersection of a right circular cone and a plane parallel to an element of the cone.
抛物线：一个直立圆锥和平行于该锥体中轴的平面相交形成的平面曲线
A plane curve formed by the locus of points equidistant from a fixed line and a fixed point not on the line.
抛物线：到一固定直线和不在直线上某一固定点等距的点的轨迹所形成的平面曲线

来源：
New Latin
现代拉丁语
from Greek parabolô [comparison, application, parabola (from the relationship between the line joining the vertices of a conic and the line through its focus and parallel to its directrix)]
源自 希腊语 parabolô [比较，运用，抛物线（源于连结圆锥曲线各顶点的直线与过圆锥曲线焦点并平行于准线的直线二者之间的关系）]
from paraballein [to compare] * see parable
源自 paraballein [作比较] *参见 parable