Example Sentences
"The prime meridian divides Earth into Eastern and Western hemispheres."
"All longitudes are measured from the prime meridian."
Synonyms & Related Terms
Quick Check
Which best describes the meaning of prime meridian?
Study Tips
To remember prime meridian, try writing it in a sentence of your own. Connect it to something you already know about geography.
Use it in conversation today — saying a word aloud three times helps lock it into long-term memory.