Meridian

usgb/məˈrɪdiən/
noun

An imaginary line that connects the North and South Pole passing through any place on earth.

Greenwich, in London, is located on the Prime Meridian.
Visual representation of "meridian" - An imaginary line that connects the North and South Pole passing through any place on earth

Often appears as...

  • prime meridian
  • meridian line
Definition 1 of 4
Visual representation of "meridian"
LampPro Tip 1/3

Geography Relevance

Understand 'meridian' as crucial in geography for indicating exact longitudinal positions on Earth.

Illustration for Geography Relevance
Class, please indicate the meridian that passes through Cairo, Egypt.
LampPro Tip 2/3

Not a Border

'Meridian' is not a physical line or border, but an abstract geographical concept.

Illustration for Not a Border
Although the Prime Meridian is important, you won't see it painted on the globe.
LampPro Tip 3/3

Time Zone Indicator

Meridians are related to time zones; territories at similar longitudes share time zones.

Illustration for Time Zone Indicator
Our country's time zone is determined by which meridian it lies closest to.
Visual representation of the word "Meridian"

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