Longitude.
Prime meridian and international dateline are also included.
These are known as lines of longitude or meridians
East to west- Latitude Lines North to south- Longitude Lines
Those are "meridians of longitude".
Lines of latitude, also know as parallels, run east-west. They measure the angular distance north and south of the equator.
Lines of latitude, also know as parallels, run east-west. They measure the angular distance north and south of the equator.
Lines of latitude are called parallels. The lines start at the equator and are located north and south of the equator.
Those are meridians of constant longitude.
Lines of longitude are also known as meridians. They run north-south and measure east-west.
The imaginary lines that run from north to south are called lines of longitude. The most significant one is the international date line, which divides the extreme east from the extreme west.
The name for the north is union. The name for the south is confederate
You're fishing for "meridians of longitude", but they are not parallel. They all come together and merge in a single point at the north pole and the south pole.
The mountain range in eastern Egypt running north to south along the Red Sea is called the Eastern Desert Mountains.