adjective.
Of or pertaining to the meridian.
adjective.
Having a southern aspect; southern; southerly.
adjective.
the distance or departure from the meridian; the easting or westing.
adjective.
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.