Definition of meridionals:
(adj) :
located in the south, southern; later especially, often pertaining to the southern parts of Europe.
(adj) :
of or characteristic of southern areas or people, especially those in the southern parts of Europe
(adj) :
(astronomy, geography, meteorology) along a north–south direction, or relative to a meridian; or relating to meridians or a meridian
(n) :
an inhabitant of a southern region, especially the south of France