noun, noun which may take the genitive case particle 'no'
meridian; line of longitude
Geographical term for a north-south line on a map or globe; often used with 緯線 (line of latitude).
地図上の経線は北極と南極を結んでいる。
The meridians on the map connect the North and South Poles.
経線と緯線を使って位置を特定する。
Identify the location using lines of longitude and latitude.
Compound of 経 (longitude) and 線 (line). The kanji 経 is used in words related to longitude, as in 経度 (longitude).