a. [ F. méridional, L. meridionalis, fr. meridies midday. See Meridian. ] [ 1913 Webster ] 1. Of or pertaining to the meridian. [ 1913 Webster ] 2. Having a southern aspect; southern; southerly. [ 1913 Webster ] Offices that require heat . . . should be meridional. Sir H. Wotton. [ 1913 Webster ]
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. [ 1913 Webster ]
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