| ID ISO/TC211 | Istilah Sumber | Istilah Sasaran | Definition | Huraian | Tarikh kemas kini |
|---|---|---|---|---|---|
| 505 | zero meridian | meridian sifar | meridian from which the longitudes of other meridians are quantified. |
meridian yang mana garisan bujur meridian lain mula ditentukan. |