# parabola

## Definitions

### General Science

### Astronomy

- One of the
**conic sections**. Parabolic sections have the property of being able to bring __light__ to a focus at a single point, so that telescope makers aspire to create parabolic optical surfaces.

### Economics

- noun a graph shaped like a U

### Electronics

- A
__curve__ which is formed by a conic section whose distance from a fixed __point__, called __focus__, is the same as that to a fixed __line__, called directrix. The curve obtained when a quadratic equation is graphed is in the shape of a parabola.

http://www.dictionarycentral.com/definition/parabola.html