名詞 parabola:

1. a plane curve formed by the intersection of a right circular cone and a plane parallel to an element of the curve

pa.rab.o.la

n.（名詞）
A plane curve formed by the intersection of a right circular cone and a plane parallel to an element of the cone.
拋物線：一個直立圓錐和平行于該錐體中軸的平面相交形成的平面曲線
A plane curve formed by the locus of points equidistant from a fixed line and a fixed point not on the line.
拋物線：到一固定直線和不在直線上某一固定點等距的點的軌跡所形成的平面曲線

來源：
New Latin
現(xiàn)代拉丁語
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 希臘語 parabolô [比較，運用，拋物線（源于連結(jié)圓錐曲線各頂點的直線與過圓錐曲線焦點并平行于準線的直線二者之間的關(guān)系）]
from paraballein [to compare] * see parable
源自 paraballein [作比較] *參見 parable