# Meaning of 'parabola'

## Meaning of 'parabola' (Webster Dictionary)

- A kind of curve; one of the conic sections formed by the
intersection of the surface of a cone with a plane parallel to one of
its sides. It is a curve, any point of which is equally distant from a
fixed point, called the focus, and a fixed straight line, called the
directrix. See Focus.

- One of a group of curves defined by the equation y = axn where n is a positive whole number or a positive fraction. For the cubical parabola n = 3; for the semicubical parabola n = /. See under Cubical, and Semicubical. The parabolas have infinite branches, but no rectilineal asymptotes.

- One of a group of curves defined by the equation y = axn where n is a positive whole number or a positive fraction. For the cubical parabola n = 3; for the semicubical parabola n = /. See under Cubical, and Semicubical. The parabolas have infinite branches, but no rectilineal asymptotes.

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