stroke density

stroke density

[′strōk ‚den·səd·ē]
(geophysics)
The areal density of lightning discharges over a given region during some specified period of time, as number per square mile per year.
References in periodicals archive ?
We can vary the following four basic properties: stroke length, stroke thickness, stroke density and paper texture effect.
Stroke density is determined by the physical properties of the pencil core and the drawing style.