noun
graticule; grid of meridians and parallels
Technical term in cartography and geography for the network of latitude and longitude lines on a map or globe.
地図上の経緯線網は、位置を正確に示すために使われる。
The graticule on a map is used to indicate positions accurately.
Compound of 経緯 (けいい, longitude and latitude) + 線 (せん, line) + 網 (もう, network). The term is a direct technical translation of 'graticule'.