the prime meridian

noun

Definition of the prime meridian

: an imaginary line that runs from the North Pole to the South Pole through Greenwich, England

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Cite this Entry

“The prime meridian.” Merriam-Webster.com Dictionary, Merriam-Webster, https://www.merriam-webster.com/dictionary/the%20prime%20meridian. Accessed 24 Nov. 2020.

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