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. Found on http://www.wordinfo.info/words/index/info/view_unit/4066/