n. An inhabitant of a southern region, especially the south of France.
[Middle English, pertaining to the sun's position at noon, from Old French meridionel, southern, from Late Latin merīdiōnālis, from Latin merīdiānus, of midday, southern; see meridian.]
Main Entry: me·rid·i·o·nal Pronunciation: m&-'rid-E-&n-&l Function: adjective : of, relating to, orsituated on or along a meridian <meridional differences in the acuity of vision> <meridional and circular fibers of the ciliary muscle>