Yes it does. How I always remember is by looking at the U and the D.
meridians or lines of longitude
Lines of longitude, also known as meridians, measure the distance east or west of the Prime Meridian, which runs through Greenwich, England. They help determine a location's position in terms of longitude on the Earth's surface.
Meridians of constant longitude.
All of the other meridians; the lines of longitude.
Meridians of longitude.
A common nickname for lines of longitude is "meridians."
meridians
Meridians of Longitude All of the other meridians; the lines of longitude.
Lines of longitude are also known as meridians. They run north-south and measure east-west.
Meridians are lines of longitude that are drawn from the North to South poles.
The lines running between the two poles are called meridians. These meridians are used in geographic coordinate systems to measure longitude and determine the angular distance east or west of the Prime Meridian (0 degrees longitude).
"Lines" of constant longitude are "meridians".