MERIDIONAL

Me‐rid″i‐o‐nal (?), a. [[F. méridional, L. meridionalis, fr. meridies midday. See Meridian.]] 1. 1. Of or pertaining to the meridian.
2. 2. Having a southern aspect; southern; southerly.
Offices that require heat . . . should be meridional. Sir H. Wotton. Meridional distance, the distance or departure from the meridian; the easting or westing. — Meridional parts, parts of the meridian in Mercator's projection, corresponding to each minute of latitude from the equator up to 70 or 80 degrees; tabulated numbers representing these parts used in projecting charts, and in solving cases in Mercator's sailing.