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meridian

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noun me·rid·i·an \mə-ˈri-dē-ən\

Simple Definition of meridian

  • : any one of the lines that go from the North Pole to the South Pole on maps of the world

Source: Merriam-Webster's Learner's Dictionary

Full Definition of meridian

  1. 1 archaic :  the hour of noon :  midday

  2. 2 :  a great circle of the celestial sphere passing through its poles and the zenith of a given place — see azimuth illustration

  3. 3 :  a high point

  4. 4 a (1) :  a great circle on the surface of the earth passing through the poles (2) :  the half of such a circle included between the poles b :  a representation of such a circle or half circle numbered for longitude on a map or globe — see longitude illustration

  5. 5 :  any of the pathways along which the body's vital energy flows according to the theory behind acupuncture

meridian

adjective

Examples of meridian in a sentence

  1. <a lawyer at the meridian of his career arguing a case before the U.S. Supreme Court>



Origin and Etymology of meridian

Middle English, from Anglo-French meridien, from meridien of noon, from Latin meridianus, from meridies noon, south, irregular from medius mid + dies day — more at mid, deity


First Known Use: 14th century


Meridian

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geographical name Me·rid·i·an \mə-ˈri-dē-ən\

Definition of Meridian

  1. 1 city SW Idaho W of Boise pop 75,092

  2. 2 city E cen Mississippi pop 41,148





MERIDIAN Defined for Kids

meridian

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noun me·rid·i·an \mə-ˈri-dē-ən\

Definition of meridian for Students

  1. 1 :  any imaginary semicircle on the earth's surface reaching from the north pole to the south pole

  2. 2 :  a representation of a meridian on a map or globe numbered according to degrees of longitude




Medical Dictionary

meridian

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noun me·rid·i·an \mə-ˈrid-ē-ən\

Medical Definition of meridian

  1. 1:  an imaginary circle or closed curve on the surface of a sphere or globe-shaped body (as the eyeball) that lies in a plane passing through the poles

  2. 2:  any of the pathways along which the body's vital energy flows according to the theory of acupuncture

meridian

adjective




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