prime meridian
another name for a line of longitude is meridian.
The name of the line that has 0 longitude is the prime meridian
A "meridian" is a line of constant longitude.
Another name for a line of longitude is "meridian."
The imaginary line running through Greenwich, England at 0 degrees longitude is called the Prime Meridian. It marks the starting point for measuring longitude and defines the Eastern and Western Hemispheres.
They're often referred to as "meridians" of longitude.
longitude
another name for a line of longitude is meridian.
Every 'line' of constant longitude is a 'meridian'.
No. 90 degrees longitude is not a major line of longitude. Only 0 and 180 degrees longitude, which are the Greenwich Meridian and the International Date Line respectively, are major lines of longitude.
A Meridian (I Think)
The equator or any line of longitude or meridian.