noun
An imaginary line that divides the Earth into the Eastern and Western Hemispheres, starting at the North Pole and passing through Greenwich, England.
-
The prime meridian is an imaginary line that divides the Earth into the Eastern Hemisphere and the Western Hemisphere.
-
Hey, did you know that the prime meridian runs through Greenwich, England?
-
The prime meridian is like the center line that splits the globe in half.
-
In a way, the prime meridian acts as the Earth's starting point for measuring longitude.