- The definition of a parabola is a symmetrical plane curve that forms when a cone intersects with a plane parallel to its side.
A u-shaped graph of a quadratic function is an example of a parabola.
parabola definition by Webster's New World
Origin: Modern Latin ; from Classical Greek parabolē, literally , application, comparison (see parable): it is produced by the “application” of a given area to a given straight line
parabola definition by American Heritage Dictionary
Origin: New Latin, from Greek parabolē, 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), from paraballein, to compare; see parable.
Any point on a parabola is the same distance from the directrix as it is from the focus.
parabola - Cultural Definition
parabola - Science Definition
The parabola of the function y = x2.