\begin{definition}[Definition:Parabola/Latus Rectum]
:420px
Consider a parabola $P$.
The '''latus rectum''' of $P$ is the chord of $P$ passing through the focus of $P$ parallel to the directrix $D$.
{{Expand|All the conic sections have a Latus Rectum -- explain the concept in terms of the general conic.}}
\end{definition}