Meridian is:

• Meridian (astronomy): an imaginary circle perpendicular to the horizon.
• Meridian (Chinese medicine): an important concept in traditional Chinese medicine.
• Meridian (geography): either half or a full great circle that connects the Earth's poles. Also 0 longitude.
• Meridian (perimetry, visual field): a polar coordinate system for the visual field.
• The name of some places in the United States of America:
  • Meridian, Idaho
  • Meridian, Mississippi
  • Meridian, New York
  • Meridian, Oklahoma

• Meridian is also a novel by Alice Walker.
• Meridian Audio, Ltd. is a British manufacturer of high quality audio equipment.
• Meridian Broadcasting has been the ITV station for the south of England since 1992.
• Meridian Energy Limited is a New Zealand electricity generation and electricity retailing company.
• Meridian was a comic book series published by CrossGen in the early 2000s, and was the name of a city-state in that comic.
• Meridian is the name of a line of business telecommunication products produced and marketed by Nortel Networks.

• Meridian is also a term used by the Public Land Survey System in the United States.
• Meridian is the Capital of Nosgoth in the Legacy of Kain series of video games.
• DJ Meridian is a drum and bass musician in New York.
• Meridian 59, an online game.
• The British Rail Class 222 trains are known as Meridians and the services they are used on are named Midland Mainline Meridian services.
• Meridian (DS9 episode) is a third season episode of Deep Space Nine.
• Meridian is the name of an Australian Gothic Rock band.

Meridian | Méridien (homonymie) | Meridiano | Meridiano (desambiguação) | Meridian (dezambiguizare)