meridian

adj. of the afternoon; of or pertaining to a meridian; pertaining to a time of greatest prosperity

n. circle circumscribing the earth that passes through the poles; longitudinal half of the earth (from one pole to the other); meridian line through any celestial being; noon, midday; climax, climactic period

Meridian may refer to:Earth scienceMeridian (astronomy), imaginary circle perpendicular to the celestial equator and horizonMeridian (geography), imaginary line on the Earth's surface from the North Pole to the South PolePrincipal meridian, the meridian on which a region is surveyed, under the Dominion Land Survey in Canada or the Public Land Survey System in the United States
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Noun
1. a town in eastern Mississippi
(hypernym) town
(part-holonym) Mississippi, Magnolia State, MS

Noun
1. an imaginary great circle on the surface of the earth passing through the north and south poles at right angles to the equator; "all points on the same meridian have the same longitude"
(synonym) longitude, line of longitude
(hypernym) great circle
(hyponym) observer's meridian
Adjective
1. of or happening at noon; "meridian hour"
(pertainym) noon, twelve noon, high noon, midday, noonday, noontide

n. meridian, circle circumscribing the earth that passes through the poles; longitudinal half of the earth; meridian line through any celestial being; noon, midday

(a.)
Pertaining to the highest point or culmination; as, meridian splendor.
  

(a.)
Midday; noon.
  

(a.)
Hence: The highest point, as of success, prosperity, or the like; culmination.
  

(a.)
Being at, or pertaining to, midday; belonging to, or passing through, the highest point attained by the sun in his diurnal course.
  

(a.)
A great circle on the surface of the earth, passing through the poles and any given place; also, the half of such a circle included between the poles.
  

(a.)
A great circle of the sphere passing through the poles of the heavens and the zenith of a given place. It is crossed by the sun at midday.