Definition from Wiktionary, the free dictionary
graticule (plural graticules)
- A grid of horizontal and vertical lines.
- (specifically, optics, Britain) A reticle.
- (specifically, geography) The network of lines of latitude and longitude that make up a coordinate system such as the one used on the Earth.
- A nearly square or nearly rectangular region created by a graticule.
grid of horizontal and vertical lines
reticle — see reticle
geography: network of lines
region created by a graticule