Difference between revisions of "Parabola"
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Parabola
</dt>
An open curve all points of which are equidistant from a fixed point,
called the focus , and a straight line. See conic
section.
</dd>
The limiting case occurs when the point is on the line, in which case
the parabola becomes a straight line.
</dd>
References
This article is based on NASA's Dictionary of Technical Terms for Aerospace Use
