Definition:Linear Measure/Depth

Definition
Depth is linear measure in a dimension perpendicular to both length and breadth.

The choice of depth is often arbitrary, although in two-dimensional diagrams of three-dimensional figures, depth is usually imagined as being the dimension perpendicular to the plane the figure is drawn in.

Also see

 * Definition:Length (Linear Measure)
 * Definition:Breadth
 * Definition:Height (Linear Measure)