You searched for: “geocentric longitude
geocentric longitude (s) (noun), geocentric longitudes (pl)
The angular distance in degrees that a celestial object lies east or west of Greenwich Meridian; or the meridian passing through Greenwich (Greater London borough on the Thames in England) which was internationally adopted as the earth's zero of longitude in 1884.
This entry is located in the following units: centro-, centr-, centri-, kentro- (page 7) geo-, ge- + (page 5) -tude (page 2)