[adj] - of or relating to latitudes north or south
• (a.) Of or pertaining to latitude; in the direction of latitude.
adjective of or relating to latitudes north or south
Lat`i·tu'di·nal adjective Of or pertaining to latitude; in the direction of latitude. 
latitudinal 1. Of or pertaining to breadth or latitude; in the direction of latitude or crosswise. 2. The angular distance north or south from the earth's equator measured through 90 degrees. 3. An angular distance of a celestial body from the ecliptic. 4. A region or locality as marked by its latitude.